Proper Use of Entrez-vous in French

Proper Use of Entrez-vous in French The comic strip Non Sequitur  by Wiley Miller held a  Great Non-Sequitur Sign-Off Contest, where readers were invited to send in suggestions for the sign in front of the Au Naturel Deli, behind the door of which lurked a bear with a cleaver. The winning entry, from Mary Cameron of Leander, Texas, had text scrawled on the sign outside that read Entrà ©e:  Vous. Most people might apply a double-entendre to the phrase in this context, which might be translated as Todays Entrà ©e: You.  This is a very cute and clever realization of the comic!  Ã¢â‚¬â€¹ Confusion of Entrà ©e and Entrez But to understand the double-meaning of this suggested comic, the reader would need to understand the  homophonous entrez vous, which is often used by non-native French speakers to mean Come in. So the sign in this comic would be read with a homonymic understanding as both Come in and Todays Main Dish: You.   Language Use Differences The problem is that entrez  vous  in French doesnt quite mean what non-native French speakers use as its literal translation.  When the phrase is broken down, the French verb  entrer is not reflexive; the correct way to say Come in is simply entrez  in the formal and plural you conjugation of the verb. So if the sign in this comic were to indicate that a passerby should enter the shop, itd simply read Entrez, and as a result lose its comedic nature. Neither of these words should be confused with  entre which translates to in or between in English and doesnt have the same pronunciation because the e at the end is essentially silent.  An example of the use of this word might be ...à §a reste entre nous,  meaning this stays between us, perhaps implicative of a confidential conversation.   When to Use Entrez-Vous For non-native French speakers, this begs the question if there is ever an appropriate use of  the phrase entrez vous  in the French language. The only time you might use entrez vous in French would be in the case of a question. Saying Entrez-vous? is similar to asking Are you coming in?  or even What about coming in? and is more casual and conversational in nature.   If youre thinking of using entrà ©e vous or entrez-vous  interchangeably, even for humor, bear in mind that it will likely not be understood by native French speakers as very humorous. Rather, its typically seen as a grammatical error.

How to Prove De Morgans Laws

How to Prove De Morgan's Laws In mathematical statistics and probability it is important to be familiar with set theory. The elementary operations of set theory have connections with certain rules in the calculation of probabilities. The interactions of these elementary set operations of union, intersection and the complement are explain by two statements known as De Morgan’s Laws. After stating these laws, we will see how to prove them. Statement of De Morgans Laws De Morgan’s Laws relate to the interaction of the union, intersection and complement. Recall that: The intersection of the sets A and B consists of all elements that are common to both A and B. The intersection is denoted by A ∠© B.The union of the sets A and B consists of all elements that in either A or B, including the elements in both sets. The intersection is denoted by A U B.The complement of the set A consists of all elements that are not elements of A. This complement is denoted by AC. Now that we have recalled these elementary operations, we will see the statement of De Morgan’s Laws. For every pair of sets A and B (A  Ã¢Ë† © B)C AC U BC.(A U B)C AC  Ã¢Ë† © BC. Outline of Proof Strategy Before jumping into the proof we will think about how to prove the statements above. We are trying to demonstrate that two sets are equal to one another. The way that this is done in a mathematical proof is by the procedure of double inclusion. The outline of this method of proof is: Show that the set on the left side of our equals sign is a subset of the set on the right.Repeat the process in the opposite direction, showing that the set on the right is a subset of the set on the left.These two steps allow us to say that the sets are in fact equal to one another. They consist of all of the same elements. Proof of One of Laws We will see how to prove the first of De Morgan’s Laws above. We begin by showing that (A  Ã¢Ë† © B)C is a subset of AC U BC. First suppose that x is an element of (A  Ã¢Ë† © B)C.This means that x is not an element of (A  Ã¢Ë† © B).Since the intersection is the set of all elements common to both A and B, the previous step means that x cannot be an element of both A and B.This means that x is must be an element of at least one of the sets AC or BC.By definition this means that x is an element of AC U BCWe have shown the desired subset inclusion. Our proof is now halfway done. To complete it we show the opposite subset inclusion. More specifically we must show AC U BC is a subset of (A  Ã¢Ë† © B)C. We begin with an element x in the set AC U BC.This means that x is an element of AC or that x is an element of BC.Thus x is not an element of at least one of the sets A or B.So x cannot be an element of both A and B. This means that x is an element of (A  Ã¢Ë† © B)C.We have shown the desired subset inclusion. Proof of the Other Law The proof of the other statement is very similar to the proof that we have outlined above. All that must be done is to show a subset inclusion of sets on both sides of the equals sign.

Cultural self assessment Assignment Example | Topics and Well Written Essays - 250 words

Cultural self assessment - Assignment Example The behavior increases the family bond as individual are able to appreciate each member of the family regardless of their relation. Personally, I value family than any other social aspect. I value the slightest family bond to any other person. My religious life has also been massively influenced by my cultural traditions. In Ghana, religion makes up a significant part the social structure. Religious practices are considered mandatory. The same impact on religion has been made on my life. I value my religion as I consider taking part in practices even if I am away from my family. Considering the impact of my cultural traditions in my life, I still continue to carry on these practices. The cultural traditions are a significant part on my social life. In addition, they are a source of my social identity regardless of distance from my native country. Carrying on these traditions enables me to appreciate my country and cultural identity (Benhabib, Shapiro & Petranovich,

ANALYSIS MOVIE Review Example | Topics and Well Written Essays - 250 words

ANALYSIS - Movie Review Example The cinematographer (Doug Emmett) filled the screen with strange point of views and dark gloomy shadows. The characters were seen through the doorjamb from or through the windows outside the house. This touch gave the movie that perspective of a horror-movie. 91 minutes movie â€Å"The One I Love† is a feature that is extremely confident having some fun things to talk about such as destiny and connection and also relationship and identity. Additionally, the movie is confined to a smaller location with a twilight zone up and set improvisation was used to flesh out the characters. The movie can be said to classic in its composition, and editorial structure with only two defined characters. In terms of camerawork, the film has a limited bitrate, this left some of the scenes to be too soft, having a lesser shaky camera, but generally, the film looked good and was not distracting while watching (â€Å"The One I

Moral Challenges Essay Example for Free

Moral Challenges Essay Morality is a highly contested topic in every day life. It can be defined as a thought process of making decisions based on one’s beliefs or desires shaped by one’s culture. A right or wrong moral decision can therefore be said to be a product of culture and law stipulated in a constitution and applied in a certain jurisdiction. In everyday life, we are faced with challenges and situations that require our judgment and actions (Kermerling, 2002). In this paper, I will explore two moral situations in which I believe I made the right and wrong decisions respectively, the parties that were involved, the reasons behind my actions and the consequences that followed my decisions and actions. Lastly, I will identify what actions I will take if faced with the same situation the next time to avoid making wrong decisions. Moral Challenges A Right Moral Decision The decision I made to take responsible leadership role and mitigate the planned students’ strike was one of the most acceptable action I ever made in my life. I was actively involved in a peace mission to contain the strike that was organized by drunken and unruly students in the university. The judgment process was affected after the students took alcohol and caused disorder in the institution (Cima, Tonnaer Hauser, 2009). The peace mission involved the director of the faculty, a lecturer, the student leaders and a few students. The students had issues with a lecturer who had failed to show up in three lectures. While it was right for the students to complain over the absence of the lecturer, it was expected for them to follow the right procedure in addressing the problem. The organizers of the strike came while drunk and tried to convince and force the rest of the students to join them in a demonstration to the administration offices. Some students got tempted and joined the unruly students claiming that the administration has failed to act appropriately to their claims. As the chair person of the students union, I took an initiative and addressed the students and informed them that contrary to the claims of some of them, the issue was being addressed and that the lecturer in question had been summoned and appropriate solution would be arrived at soon. I spoke with wisdom, â€Å"Comrades, we are gathered here to inquire about our rights to have normal and uninterrupted studies. Besides, any missed lecture means waste of time and resources. However, the lecturer in question has been summoned and the decision will be communicated to us in appropriate time. Furthermore, I have called the director of the faculty and informed me that he will be here with us in the next one hour. Therefore, I request all of us to have patience since the issue is being handled wisely by the administration. Thank you! † My speech caused a mixed reaction with minority of them accusing me and the rest of the leaders of being sympathizers and colluding with the administration and not giving students’ interests any priority. They begun singing and chanting and demanded at the top of their voices that, â€Å"we demand that you and all our leaders join us in the fight for our rights†¦ we want to show the lecturer a lesson. † Majority of the students were convinced in my speech and they helped in calming the situation. Later, the faculty director arrived and he addressed us all giving the way forward to the satisfaction of the majority. The main architects of the strike were identified and suspended and others expelled and the university once again realized the tranquility which was important in the learning process. This benefited the administration as it served as a wake up call and they moved with speed to address majority of issues by factoring in student needs. The rest of the students benefitted by continuing with normal learning and all the issues raised were addressed with the lecturer getting a warning A Wrong Moral Situation An incident I remember to have taken a wrong decision involved taking side with my brother to indict our house help. Due to my brother’s recklessness, he had left the car keys in his girlfriend’s house. The girlfriend quietly sneaked in our compound and took off with the car whose keys were forgotten in her house. Unfortunately, the girlfriend was a drug dealer and so used the car to transport hard drugs to her customers. She got spotted by the police although she managed to escape abandoning the car and drugs. After learning that the car was in police station, my father rushed home to interrogate us all before proceeding to the police station to record a statement. On sharing with my brother we called his girlfriend and struck a deal to be silent on the whole issue and put the whole blame on the house help. Although I knew the whole truth that my brother had forgotten the keys at his girlfriend’s house, I argued in defense of my brother. I maintained that it was the house help’s responsibility to take care of everything. My brother after gaining confidence and my support, he made his remark in a family meeting, â€Å"I fail to understand how the car came to be used in drug trafficking. It is evident that the house help has been colluding with drug traffickers. The house help should get sacked with immediate effect. † He talked harshly as he left the sitting room, â€Å"He should provide a succinct explanation in this meeting or else he will do it better at the police. † I felt a push inside my heart that what I was doing was wrong but I convinced myself that I had the obligation of defending my brother no matter what and so I cared less of the consequences to the other party. This is the case that happens with psychopaths (Cima, Tonnaer Hauser, 2009). The houses help felt much threatened and could not raise point to defend himself even when it meant he was not guilty. This led to his sacking letting my brother to go scot-free. My brother’s girlfriend and her gang made their best not to be caught in the scandal as they feared the consequences like imprisonment and fines. But the house help suffered unfairly as he lost his job failing to get paid and getting disturbed with even not knowing what could follow. I regretted of making such decision and I made a promise to myself that in case I got faced with the same problem, I would first remind my brother that it should be his responsibility to be accountable for every action he takes and that the house help has aright to expression and fair treatment. This will serve as an example and a wake up call for him to act appropriately in future. The issue of defending my brother and his girlfriend was not moral as it led to the firing of the house help. I will in future keep morals and make sensible decisions which respect all people regardless to class (Kermerling, 2002). In general, it is important that we make decisions based on our beliefs and moral codes on what is right and wrong. This will help shape our society and make everyone act to appropriately. Right moral decisions have significant benefit in the society. With right moral judgments, justice will be maintained and the offenders will be punished. Wrong moral decisions deprive the society of peace and justice. The poor and the minor groups in our society will always be intimidated as they are powerless. Reference: Cima, M. , Tonnaer, F. , Hauser, M. D (2009). Psychopaths know right from wrong but don’t care. Human Molecular Genetics’ Special Review Issue: Molecular Genetics Advances in Neurological Disease. 3(1): 329-45. Kemerling, G (2002). Kant: The moral order. Retrieved June 06 2010 from: http://www. philosophypages. com/hy/5i. htm

To Kill a Mockingbird Essays - Atticus Finch :: Kill Mockingbird essays

Compassionate, dramatic, and deeply moving, Harper Lee's, To Kill a Mockingbird takes readers to the roots of human behavior, to innocence and experience, kindness and cruelty, love and hatred, and the struggle between blacks and whites. Atticus Finch, a lawyer and single parent in a small southern town in the 1930's, is appointed by the local judge to defend Tom Robinson, a black man, who is accused of raping a white woman. Friends and neighbors object when Atticus puts up a strong and spirited defense on behalf of the accused black man. Atticus renounces violence but stands up for what he believes in. He decides to defend Tom Robinson because if he did not, he would not only lose the respect of his children and the townspeople, but himself as well. In addition to being a lawyer, Atticus enjoys being a father to Jem and Scout. When Jem and Scout found out that their father would be defending a black person, they knew immediately that there would be much controversy, humiliation from the people of Maycomb and great difficulty keeping Tom alive for the trial. It was not long when Atticus had to leave the house very late to go to jail, where Tom was kept because many white people wanted to kill him. Worrying about their father, Jem and Scout sneak out of the house to find him. A self-appointed lynch mob has gathered on the jail to take justice into their own hands. Scout decides to talk to Walter Cunningham, one of the members of the mob. She talks about how her father Atticus thought that "entailments are bad "(154 ) " and that his boy Walter is a real nice boy and tell him I said hey"(154). Upon hearing this, the mob realized that Atticus cannot be all bad if he has such a nice daughter as Scout. Atticus, with some unexpected he lp from his children, faces down the mob and cause them to break up the potential lynching of the man behind bars. Having gone to a black church earlier, the children found out that Tom is actually a kind person, church-going and a good husband and father to his children. The town of Maycomb in the 1930's was split into two sections, the white section and the black section. This was a time of racial segregation, where blacks were not permitted to go to the same schools as the whites.

Jaffna Tourism Essay

1. Executive Summary There is a huge vacant area in all over the world to enhance the Tourism. Almost all the countries are developing their Tourism industry in their country. Sri Lanka is such one of them becoming more popular in the Asian Country. So it’s a good opportunity to Investors to come and invest their Income to earn high profit. This Assignment all about Tourism of Sri Lanka, Where a foreign company going to operate their Business with clear understanding of the present scenario of the country So as a Local partner I have prepared an important report to join hands with foreign company and enhance the tourism in Sri Lanka 2. Introduction A Canadian based Tourism industry is coming to Sri Lanka and to operate their Tourism industry in Pasikuda region. So as a local partner I have proposed some important focal areas of Pasikuda region with clear justifications These short and clear proposals that every one can understand and come to know a bout Sri Lanka and its Tourisms Sri Lanka Sri Lanka is an island country which is located in the Indian Ocean and the subcontinent in South Asia. Sri Lanka is a strategic place for trade because of its location and the major sea routes. Sri Lanka has been called The Pearl of the Indian Ocean because of its unique features and attractive natural places around the country. The capital city of Sri Lanka is Sri Jayawardenapura-Kotte which has high population and busy crowded people. Sri Lanka is encapsulated with varieties of cultures, languages and religions. The Sinhalese people occupy the majority of the population; Tamils and Muslims are with smaller quantity where as it include Moors, Burghers and Malays. The country is famous for the production tea, coffee, gemstones, rubber and cinnamon. The island contains tropical forests, wonderful Land scape. The country claims a long history over 2500 years. The country is a founding member state of SAARC; Sri Lanka was one of the fastest growing economies of the world. 3. Tourism in Sri Lanka Tourism is one of the famous major industries playing a vital role for the development of Sri Lankan economy recently. It attracts many foreigners because of its unique features and undisturbed rain forests. Sri Lanka is portrayed as a play ground for European people for its cheapest prices and fine historical areas. After end of the civil war we can see the development of tourism recently. However after the end of the conflict in 2009 the country’s tourism looks better and increasing dramatically. In 2010 after the war Sri Lanka had a growth of 46% in Tourism arrivals. From 2009 to 2011 the Tourism arrivals got doubled with the arrivals of reaching 855,975 as at end of 2011.Government of Sri Lanka taking a head to improve the Tourism in Sri Lanka by investing large amount of money all over the Island. The finest times to visit Sri Lanka are between the main rainy seasons, because the island is just north of the equator also good place to visit in hot seasons. Temperatures remain almost constant throughout the year, but rainfall varies widely. The Hill Country is cooler throughout the year than the other part of Sri Lanka. The country appointed educated and English speaking people to guide the tourist and enjoy the holiday throughout. According to the Sri Lankan Tourism Development Authorities information the country has over 1400 registered hotel rooms and majority occupied in Colombo. The hotels are classified in five star categories ranging from 1 to 5 stars currently. Sri Lanka has consisted hotels called John keels, Aitken Spence and Jetwing hotels where as some international brands such as Taj and Aman are also present in the country. There are many other international hotels waiting to emerge inside the country such as Movenpick etc†¦they will enter either under management contracts or joint venture. Sri Lanka concentrating high in building five stars rated hotels to increase the tourist visits. Most of the hotels are owned by individual proprietors also there are many to come with 5 stars hotels. Following exhibit tourist arrivals from 2007 to 2010 2007 494,008 2008 438,475 2009 447,890 2010 654,476 2011 853,975 So we can clearly see the improvement of tourism all over the Island and also there are many empty spaces that can be filled by investors pointing out those focal areas can come out with dynamic planning to increase the sales turn over. Pasikuda and its Tourism Pasikuda Pasikuda is famous for its beautiful beaches and which is loved by every one with its wonderful lands scape, which is situated on the east coast of Sri Lanka, 300 Kilometers from Colombo. It is in the process of developing a leading tourist destination in Sri Lanka. The visitor’s main attraction Are long and wide sunny beach, Blue Sea with golden sand are some of them in this region. Pasikuda is known to have one of the longest shallow coastlines in the world, because the water is not more only a few inches deep so people can walk many kilometers into the sea without any fear and can enjoy. The closest major town is Batticaloa which is about 20-30 minutes ride in a vehicle. There are limited hotels in the Pasikuda area is the major reasons why tourism is not taking off. Some of the lands are bought by some hotel groups so in the future we are bound to see an increase in hotels. This region getting developed by building access roads, electricity and water supply getting renovated at a rapid pace, In addition to this, a super market, an art gallery, a theatre and a golf course are expected to be constructed. The government has allocated 156 acres of land in Pasikuda tourism zone, with 14 hotels to come up with approved constructions.so the total investment is around Rs 5703 million. The first hotel contains 40-rooms named called ‘Maalu Maalu’. Once all the hotels are completed, 930 rooms would be available for occupation. Foreigners and the local made this place as an ideal place for sun bathe, sea bathe and a leisure play ground for boat trips, water skiers. Pasikuda don’t have much luxury hotels you have to do with small hotels, some foreigners expecting that in the near future there will be some luxury hotels in this region. So this is the right time to build and develop the tourism in this region with the help of government, because the government expecting to increase the tourism in this region for this they are giving tax concession and other facilities.

Notes on Aryl Halides

3/22/2012 ARYL HALIDES 2. displacement reactions of diazonium salts ARYL HALIDES General formula: Ar–X where X = F, Cl, Br or I Examples Structure: ? C-X bonds are shorter and stronger Bond C-Cl C-Br Ar-X 1. 69 AÂ ° 1. 86 AÂ ° R-X 1. 77 1. 91 ? Dipole moments are unusually small. Bond C-Cl Preparation: 1. electrophilic aromatic substitution – useful only if one product is obtained C-Br Ar-X 1. 7 D 1. 7 D R-X 2. 10 D 2. 15 D ? Dipole moments may cancel out depending on the geometry of the molecule. 1 3/22/2012 PHYSICAL PROPERTIES: ?Boiling points – similar to those of alkyl halides; same trends ? Melting point – Among disubstituted aryl dihalides, para isomer has unusually high MP; ~70 – 100 Â °C higher than ortho and meta isomers ? Solubility behavior – insoluble in water; soluble in nonpolar organic solvents – para isomer is less soluble than ortho or meta in any given solvent ? can be readily purified by recrystallization Consider : REACTIONS: 1. Electrophilic aromatic substitution (EAS) – recall directing power (o, p director) but ring is deactivated toward EAS. 2.Nucleophilic Aromatic Substitution (NAS or SNAr) ipso substitution ? an atom or group other than H is replaced in the reaction Reaction Mechanisms For NAS: A. BIMOLECULAR DISPLACEMENT: addition-elimination mechanism; occurs under mild conditions ***the aromatic ring must contain strongly electron – withdrawing or electron – attracting groups 2 3/22/2012 Observations: 1. Element effect (Bunnett): Aryl halides do not show much difference in reactivities toward NAS via bimolecular displacement. 2. Aryl fluorides are most reactive. II. Addition – fast removal of the halogen as X- is not the rate determining step . B. The Benzyne Mechanism: Elimination-addition mechanism – occurs under forcing or vigorous conditions Evidence for the benzyne mechanism: 1. scrambling of the label – reaction mechanism: 2. benzyne c annot form if both ortho positions are occupied by other groups 3 3/22/2012 D. Wurtz-Fittig Reaction 3. O-bromoanisole and m-bromoanisole give the same product under the reaction conditions. ANALYSIS: 1. Chemical tests: Test Reagent Br2/CCl4 KMnO4 AgNO3 Result (-) (-) (-)OTHER REACTIONS OF ARYL HALIDES 1. Metallation Reactions for aryl halides without reactive groups Grignard Reaction: 2. IR Spectroscopy C-X absorptions lie in the fingerprint region ? not useful for analysis 1000 – 1350 cm-1 C – F str. 750 – 850 cm-1 C – Cl str. 500 – 680 cm-1 C – Br str. 200 – 500 cm-1 C – I str. Important peak frequencies 1500, 1600 cm-1 3000 – 3100 cm-1 aromatic C – C str. aromatic C – H str. Reaction with Lithium Metal: Transmetallation – most successful with ArBr and ArI 4

An experiment to determine the enthalpy changes using Hesss law Essay Example

An experiment to determine the enthalpy changes using Hesss law Essay Example An experiment to determine the enthalpy changes using Hesss law Essay An experiment to determine the enthalpy changes using Hesss law Essay The main idea behind this experiment is to find out the temperature difference between the room temperature and the final temperature. Sodium carbonate, sodium hydrogencarbonate and hydrochloric acid were used in this experiment. Sodium carbonate, also known as soda ash is got from the reaction of carbonic acid and sodium hydroxide while sodium hydrogencarbonate (baking soda) is a salt formed by the partial replacement of hydrogen by sodium.Data Collection1) Temperature change by using 3.3g of sodium hydrogencarbonateMass of the container on which the sample was weighed = 11.48gMass of the container and the crystals = 14.98gMass of the container after the crystals were added = 11.70gMass of the crystals that did not react = 00.20gMass of the crystals that reacted = 03.30gTime (s)Temperature ( à ¯Ã‚ ¿Ã‚ ½ C)023.03023.06023.09018.012015.015015.018015.021015.024015.527016.030016.02) Temperature change by using 1.88g of sodium carbonateMass of the container on which the sample was weigh ed = 11.48gMass of the container and the crystals = 13.48gMass of the container after the crystals were added = 13.60gMass of the crystals that did not react = 00.12gMass of the crystals that reacted = 01.88gTime (s)Temperature ( à ¯Ã‚ ¿Ã‚ ½ C)023.03023.06023.09029.012030.015030.018030.021030.024029.527029.030029.03) Temperature change by using 5.66g of sodium hydrogencarbonateMass of the container on which the sample was weighed = 11.48gMass of the container and the crystals = 18.48gMass of the container after the crystals were added = 12.82gMass of the crystals that did not react = 01.34gMass of the crystals that reacted = 05.66gTime (s)Temperature ( à ¯Ã‚ ¿Ã‚ ½ C)023.03023.06023.09021.012021.015021.018021.021021.024022.527022.030022.04) Temperature change by using 3.85g of sodium carbonateMass of the container on which the sample was weighed = 11.48gMass of the container and the crystals = 15.48gMass of the container after the crystals were added = 11.63gMass of the crystals th at did not react = 00.15gMass of the crystals that reacted = 03.85gTime (s)Temperature ( à ¯Ã‚ ¿Ã‚ ½ C)023.03023.06023.09028.512028.515028.518028.521028.524028.027028.030028.0UNCERTAINITIES+/- 0.01g : Digital weighing scale+/- 0.01s : Stop watch+/- 0.05cm3 : Measuring cylinder+/- 0.05à ¯Ã‚ ¿Ã‚ ½C : ThermometerOBSERVATIONS- When hydrochloric acid is added to sodium carbonate, some effervescence (bubbles appear) is observed because of the liberation of carbon dioxide gas. It is completely soluble and in the process it starts getting warmer.- The same thing happens when sodium hydrogencarbonate is added to hydrochloric acid except for the fact it cools down instead of getting warmer.CHEMICALS (QUALITATIVE DATA)1) Hydrochloric acid- It is colorless and odorless. It is a monoprotic acid, that is, it produces 1 hydrogen ion when completely dissolved in water. The molarity of hydrochloric acid used in this experiment is 2M.2) Sodium carbonate- Sodium Carbonate is a white, crystalline com pound soluble in water (absorbing moisture from the air) but insoluble in alcohol. It forms a strongly alkaline water solution. It is also known as soda ash3) Sodium hydrogencarbonate- sodium bicarbonate or sodium hydrogen carbonate, chemical compound, NaHCO3, a white crystalline or granular powder, commonly known as bicarbonate of soda or baking soda. It is soluble in water and very slightly soluble in alcohol.DATA PROCESSING AND PRESENTATIONFinding the enthalpy of reaction for the following equation:2NaHCO3 Na2CO3 + H2O +CO2a) Using 1.88g of sodium carbonate and 3.3g of sodium hydrogencarbonateEnthalpy cycle for the reaction?H12NaHCO3(s) + 2 HCl 2NaCl(aq) +2 CO2(g)+ 2 H2O(l)?H2 ?H3Na2CO3(s) + CO2(g) + H2O + 2 HCL(aq)Heat released during the reaction between HCl and NaHCO3 (Q1)= Mc?TSo, Q1 = 25g * 4.18 * (15-23)Q1 = 25* 4.18 * -8Therefore, Q1 = -836 J= -0.836KJCalculating the number of moles present in 3.3g of NaHCO3Number of moles = mass(g)/ molar massMass (g) = 3.3gMolar mass = 2 3 + 1 + 12 +(16*3)= 23 + 1 + 12 + 48= 84 g/molnumber of moles present in 3.3g of NaHCO3 = 3.3g/ (84g/mol)= 0.039 molesCalculating the amount of energy given out by 1 moleIf 0.039 moles of NaHCO3 give -0.836KJ of energy then1 mole would give out (-0.836/0.039 = -21.44KJ) of energyTherefore, ?H1 = -21.44 KJ/molCalculating ?H3 by the above method, that is, the reaction between Na2CO3 and HClQ2 = Mc?TSo, Q2 = 25 * 4.18 * (30-23)Q2 = 25 * 4.18 * 7Therefore, Q2 = 731.5J= 0.7315KJCalculating the number of moles present in 1.8g of Na2CO3Number of moles = mass (g)/ molar massMass (g) = 1.8gMolar mass = (23 * 2) + 12 +(16*3)= 46 +12 + 48= 106 g/molnumber of moles present in 1.8g of Na2CO3 = 1.8g/ (106g/mol)= 0.018 molesCalculating the amount of energy given out by 1 moleIf 0.018 moles of Na2CO3 give -0.731KJ of energy then1 mole would give out (-0.7315/0.018 = 40.64KJ) of energyTherefore, ?H3 = 40.64 KJ/molIn order to find the enthalpy of reaction for:2NaHCO3 Na2CO3 + H2O+ CO2; we use the Hes ss law which states that 2 ?H1 = ?H2 + ?H3?H2 = 2 ?H1 ?H3so, 2 ?H1 = 2 * -21.44 KJ/mol= -42.88KJ/mol?H3 = 40.64 KJ/molTherefore, ?H2 = -42.88 40.64= -83.52KJ/molb) Calculating the enthalpy change of reaction using 5.66g of sodium hydrogencarbonate, 3.85g of sodium carbonate and 50cmà ¯Ã‚ ¿Ã‚ ½ of HCl.Enthalpy cycle for the reaction?H12NaHCO3(s) + 2 HCl 2NaCl(aq) +2 CO2(g)+ 2 H2O(l)?H2 ?H3Na2CO3(s) + CO2(g) + H2O + 2 HCL(aq)Heat released during the reaction between HCl and NaHCO3 (Q1)= Mc?TSo, Q1 = 50g * 4.18 * (21.5-23.0)Q1 = 50* 4.18 * 1.5Therefore, Q1 = -331.50 J= -0.3135KJ `Calculating the number of moles present in 5.66g of NaHCO3Number of moles = mass (g)/ molar massMass (g) = 5.66gMolar mass = 23 + 1 + 12 + (16*3)= 23 + 1 + 12 + 48= 84 g/molnumber of moles present in 5.66g of NaHCO3 = 5.66g/ (84g/mol)= 0.0674 molesCalculating the amount of energy given out by 1 moleIf 0.0674 moles of Na2CO3 give -0.3135KJ of energy then1 mole would give out (-0.3135/0.0674 = -4.65KJ) of en ergyTherefore, ?H1 = -4.65 KJ/molCalculating ?H3 by the above method, that is, the reaction between Na2CO3 and HClQ2 = Mc?TSo, Q2 = 50 * 4.18 * (28.5-23)Q2 = 50 * 4.18 * 5.5Therefore, Q2 = 1149.5J= 1.1495KJCalculating the number of moles present in 3.85g of Na2CO3Number of moles = mass (g)/ molar massMass (g) = 3.85gMolar mass = (23 * 2) + 12 + (16*3)= 46 +12 + 48= 106 g/molnumber of moles present in 1.8g of Na2CO3 = 3.85g/ (106g/mol)= 0.036 molesCalculating the amount of energy given out by 1 moleIf 0.036 moles of Na2CO3 give 1.1495KJ of energy then1 mole would give out (1.1495KJ/0.036 = 31.93KJ) of energyTherefore, ?H3 = 31.93KJ/molIn order to find the enthalpy of reaction for:2NaHCO3 Na2CO3 + H2O+ CO2; we use the Hesss law which states that 2 ?H1 = ?H2 + ?H3?H2 = 2 ?H1 ?H3so, 2 ?H1 = 2 * -4.65 KJ/mol= -9.3KJ/mol?H3 = 31.93KJ/molTherefore, ?H2 = -9.3KJ/mol 31.93KJ/mol= -41.23KJ/molc) Error analysisDigital weighing scale: 1) 0.01/3.3 * 100= à ¯Ã‚ ¿Ã‚ ½0.3%2) 0.01/5.66 * 100= à ¯Ã‚ ¿Ã‚ ½0.18%Stop watch : 0.01/300 * 100= à ¯Ã‚ ¿Ã‚ ½ 3.3*10^-3Measuring cylinder : 1) 0.05/25 * 100= à ¯Ã‚ ¿Ã‚ ½0.2%2) 0.05/50 * 100= à ¯Ã‚ ¿Ã‚ ½0.1%Thermometer : 0.05/23 * 100= à ¯Ã‚ ¿Ã‚ ½0.22%Total percentage error = 0.22%+ 0.1% + 3.3*10^-3 + 0.18%+ 0.3%= à ¯Ã‚ ¿Ã‚ ½0.8033%Accounting for the error ?H2 = à ¯Ã‚ ¿Ã‚ ½ -41.23KJ/mol= à ¯Ã‚ ¿Ã‚ ½ -83.52KJ/molConclusionThe reaction between sodium hydrogencarbonate and HCl is endothermic, that is, heat is being absorbed in the reaction and the reaction between sodium carbonate and HCl is exothermic because temperature is given out to the surroundings.Also, in the second part of the experiment when the volume of HCl is increased and also the masses of sodium hydrogencarbonate andsodium carbonate is increased, the temperature difference in the reaction is less than before when the mass were less. The enthalpy of reaction is also decreased in the second part.Evaluation:Reasons for shortcoming in the answers are as follows:1) While t ransferring the HCl from the measuring cylinder to beaker, there is a possibility of leaving out some amount of HCl in the beaker itself.2) An analogue thermometer was used so the temperature may not have been accurate.3) Some systematic errors in the equipment might have led to some slight changes in the readings.Solution to the above problems:1) The first problem stated above is a personal error; So it can only be overcome by practice and improving ones concentration while doing the experiment.2) The second problem could have been overcome by the use of digital thermometer which is more accurate than an analogue thermometer.

5 Errors in Treating Quotations

5 Errors in Treating Quotations 5 Errors in Treating Quotations 5 Errors in Treating Quotations By Mark Nichol When you quote another person, be sure to avoid these pitfalls of quotation format. 1. Sometimes, LaPierre said, The only thing to stop a bad guy with a gun is a good guy with a gun.† In this sentence, the writer has inserted the word sometimes, though the speaker did not utter it verbatim, into the sentence because the speaker intimated it in other words. Because it wasn’t actually spoken, however, it is placed outside the quotation marks. But the sentiment begins with sometimes, not the, so the quotation becomes a partial one and the is not capitalized: â€Å"Sometimes, LaPierre said, ‘the only thing to stop a bad guy with a gun is a good guy with a gun.’† 2. Alfred North Whitehead wrote that The best education is to be found in gaining the utmost information from the simplest apparatus.† A similar rule applies to an attribution (â€Å"so and so said/wrote/agreed†) that leads into the quotation without intervening punctuation; the quotation becomes part of a framing sentence, and the first word of the original quotation is not capitalized: â€Å"Alfred North Whitehead wrote that ‘the best education is to be found in gaining the utmost information from the simplest apparatus.’† 3. We knew, Jones says, that the company would eventually become a major competitor, but, without a relationship, we thought we were in danger of not achieving ubiquity.† In this sentence, the writer interjects the attribution into the midst of the quotation, which is standard procedure. However, the attribution should be delayed until a break between two clauses: â€Å"‘We knew that the company would eventually become a major competitor,’ Jones says, ‘but, without a relationship, we thought we were in danger of not achieving ubiquity.’† 4. Schools may be the last place,' Smith said, where the government is funding us to gather together into public forums to have conversations. We have got to protect that.† This sentence, like the previous example, suffers from premature attribution. Because there is no natural break in the sentence, the attribution should be inserted between the two sentences: â€Å"‘Schools may be the last place where the government is funding us to gather together into public forums to have conversations,’ Smith said. ‘We have got to protect that.’† 5. â€Å"In many ways, it’s like the cowboys against the Indians. But the cowboys are fully backed by the state, he said of the current situation. In this case, the attribution is delayed too long. In a quotation of two or more sentences, as in the previous example, place it between the first and second sentences: â€Å"‘In many ways, it’s like the cowboys against the Indians,’ he said of the current situation. ‘But the cowboys are fully backed by the state.’† (Note, too, how this arrangement strengthens the sentence because it ends with a serious punchline rather than a dry attribution.) Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Punctuation category, check our popular posts, or choose a related post below:20 Words with More Than One SpellingUsed To vs. Use ToCapitalizing Titles of People and Groups

Food Journal Reflections Lab Report Example | Topics and Well Written Essays - 250 words

Food Journal Reflections - Lab Report Example I had one and a half serving of vegetables and one serving of fruit per day (organic content) which I considered too little. For foods with animal products, I took a glass of milk for each of the two days. Most of the foods I ate are local foods. Most of the foods stocked in the grocery and supermarket stalls in the country are local foods. It is important to prompt the local food industry by consuming more of the local foods than the imported ones (Wang,2014). The local foods are of an immense variety each containing specific nutritional requirements.The average American eats one serving of fruit and vegetable each day which is too little to provide the necessary organic requirements. There is also an increasing amount of meats consumption in American households while foods containing other essential animal products like minerals are on the decline. A healthy diet requires that an individual eats a balanced diet every day while striving to sustain a caloric intake of about 2000 calories per day. This requires cutting down on meat consumption to at least once per two days and increase the intake of foods with organic content like fruits and vegetables to at least once per day. Along with fruits and vegetables, individuals should also strive to have at least every meal providing essential animal products apart from meat (Wang, 2014). Such products include milk, eggs et cetera. Wang, D. D., Leung, C. W., Li, Y., Ding, E. L., Chiuve, S. E., Hu, F. B., & Willett, W. C. (2014). Trends in dietary quality among adults in the United States, 1999 through 2010.  JAMA internal medicine,  174(10),