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# Chem 102 Lab Fischer Esterification - Calculations

Course: CHEM 102, Fall 2010

School: Arizona

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Calculations Determination of mass Subtraction Graduated Cylinder, Round Bottom Flask, Alcohol 79.504 grams Graduated Cylinder 62.789 grams Round Bottom Flask -14.495 grams 1-Hexanol Alcohol 2.22 grams Subtraction Centrifuge Tube and Ester 7.515 grams Centrifuge Tube -6.633 grams Hexyl Acetate 0.882 grams Determination of mmoles Division Hexyl Acetate 0.882 grams 144.21 grams/mole Moles of Hexyl...

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Calculations Determination of mass Subtraction Graduated Cylinder, Round Bottom Flask, Alcohol 79.504 grams Graduated Cylinder 62.789 grams Round Bottom Flask-14.495 grams 1-Hexanol Alcohol 2.22 grams Subtraction Centrifuge Tube and Ester 7.515 grams Centrifuge Tube-6.633 grams Hexyl Acetate 0.882 grams Determination of mmoles Division Hexyl Acetate 0.882 grams 144.21 grams/mole Moles of Hexyl Acetate . 0061160807 moles ● 1000 mmoles/mole MiliMoles of Hexyl Acetate 6.116 mmoles Determination of % yield Limiting Reagent/ 1-Hexanol Ideal Yield 2.22 grams ● 102.17 grams/mole .0217284917 moles ● 1000 = 21.728 mmoles Actual Yield Hexyl Acetate 0.882 grams ● 144.21 grams/mole .0061160807 moles ● 1000 = 6.116 mmoles % Yield = Actual Yield (06.116 mmoles) ● 100% = 28.148% Ideal Yield (21.728 mmoles)Calculations Determination of mass Subtraction Graduated Cylinder, Round Bottom Flask, Alcohol 79.504 grams Graduated Cylinder 62.789 grams Round Bottom Flask-14.495 grams 1-Hexanol Alcohol 2.22 grams Subtraction Centrifuge Tube and Ester 7.515 grams Centrifuge Tube-6.633 grams Hexyl Acetate 0.882 grams Determination of mmoles Division Hexyl Acetate 0.882 grams 144.21 grams/mole Moles of Hexyl Acetate . 0061160807 moles 1000 mmoles/mole MiliMoles of Hexyl Acetate 6.116 mmoles Determination of % yield Limiting Reagent/ 1-Hexanol Ideal Yield 2.22 grams 102.17 grams/mole .0217284917 moles 1000 = 21.728 mmoles Actual Yield Hexyl Acetate 0.882 grams 144.21 grams/mole .0061160807 moles 1000 = 6.116 mmoles % Yield = Actual Yield (06.116 mmoles) 100% = 28.148% Ideal Yield (21.728 mmoles)

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Arizona - CHEM - 102
DiscussionThe ReactionThis experiment was a very straightforward lab procedure. We used the fisher esterificationprocess on a carboxcylic acid and an alcohol to obtain an ester plus water. In this reactions I used thealcohol 1-Hexanol and reacted that
Arizona - CHEM - 102
ExperimentalThe ReactionIn this experiment we will be needing a round bottom flask, a Hickman distillation head, adigital thermometer, and a microstirbar. Prior to beginning this experiment, make sure that all of theglassware are thoroughly clean. The
Arizona - CHEM - 102
IntroductionAn esterification is a common type of biochemical reaction which is the condensation ofcarboxylic acids with alcohols. The condensation of carboxylic acids with alcohols produces thechemical compound ester. Though carboxylic acids and alcoh
Arizona - CHEM - 102
ResultsAlcohol: 1-Hexanol; Ester: Hexyl AcetateGraduated Cylinder, Round Bottom Flask, and Alcohol79.504 gramsGraduated Cylinder62.789 gramsRound Bottom Flask14.495 gramsStarting Amount of Alcohol 3 mL of 1-HexanolReflux Reaction2.22 gramsStart
Arizona - CHEM - 102
DiscussionAfter comparing the results from the reactions of the known compounds to the reactions of theunknown compounds it was all a matter of the process of matching and elimination. The confidencelevel of the final results are very high. All of the
Arizona - CHEM - 102
ExperimentalThis experiment containsfour parts: the Ceric Nitrate (Ce(NO3)3) Test, the Lucas Test, the 2, 4Dinitrophenylhydrazine (2, 4-DNPH) Test, and the Dichromate (Na2Cr2O7) Oxidation Test. The firstprocedure is to determine which of the four unknow
Arizona - CHEM - 102
IntroductionA qualitative analysis is a systematical process of collecting data through the method of usingknown compounds to identify or characterize a compound that is unknown. This experiment containstwo objectives: the ability to evaluate a series
Arizona - CHEM - 102
ResultsCeric Nitrate TestKnown Compounds Observations and DescriptionsCyclohexaneSuitable blank(-) Negative resultNo alcohol presentedTransparent, liquid before reacting with the reagentRemained yellow after reacting from the reagentMild odor1-b
Arizona - CHEM - 102
ExperimentalThe Saponification: Check out 110C thermometer, a 600-mL beaker, and a 25-mL buret from the prep room. Weigh about 5 grams of fat into the 125-mL Erlenmeyer flask. Add 10.00mL of 6.0M NaOH into the flask. Record the volume. Add 10mL of 9
Arizona - CHEM - 102
IntroductionLipids are the major class of biological molecules and the major component of cell membranes.They are not the same as other molecules because they are non polar and water insoluble. Due to theirinsolubility they keep the cells from dissolvi
Arizona - CHEM - 102
ResultsThe SaponificationWeight of fat in Erlenmeyer flaskgramsmolesMolecular weight of fat (Refer to Calculations)Volume of NaOHgrams/molemLmoles39.9969 grams/molesFinal weight of dry solidgramsDetermination of Excess NaOHTotal Volume of fi
Arizona - CHEM - 102
CalculationsDetermining the Limiting Reagent:Salicylic Acid (C7H6O3)Acetic Anhydride (C4H6O3)Acetyl Salicylic Acid (C9H8O4)AdditionC 7 x 12 = 84H 6 x 01 = 06O 3 x 16 = 48AdditionC 9 x 12 = 128H 8 x 01 = 08O 4 x 16 = 64AdditionC 4 x 12 = 48H
Arizona - CHEM - 102
DiscussionPossible Errors:There are several possible errors that contributed to the finalized results. The first possible erroroccurred in the Synthesis of Acetylsalicylic Acid: Recrystallization part of the lab. The crude aspirinwas not completely dr
Arizona - CHEM - 102
ExperimentalSynthesis of Acetylsalicylic AcidThis part of the experiment contains four parts: synthesis, recrystallization, determining themelting point, and thin layer chromatography (TLC).Synthesis:During the synthesis stage our goal will be to det
Arizona - CHEM - 102
IntroductionSynthesis of Acetylsalicylic Acid:In this experiment we will react salicylic acid (C7H6O3) with acetic anhydride (C4H6O3) in thepresence of an acid catalyst to make an acetylsalicylic acid (C9H8O4) and an acetic acid (C2H4O2). Thisorganic
Arizona - CHEM - 102
ResultsSynthesis of Acetylsalicylic Acid Part 1Limiting Reagent of Crude ProductLimiting ReagentWeight of Crude Aspirin5.95 gramsSalicylic Acid.029 moles = 29 mmolesAcetic Anhydride.093 molesCrude Aspirin.028 moles = 28 mmoles% Yield for Crude
Arizona - CHN - 245
Tina ChauCHN 245Paper #1Topic BChina has a population estimating over 1.3 billion citizens. Out of those 1.3 billionChinese citizens roughly 500 million citizens either read, listen, or watches the news on a dailybasis. It is clear and safe to say t
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Tina ChauEDL 200Country Educational System ComparisonRussia proudly stands as one of the top industrialized countries with a literacy rate of 98% to100% exceeding most of the Western European countries. Africa, on the other hand, has one of thelowest
Arizona - EDL - 200
Tina ChauEducational Topic Research Extra CreditFor many years China had stood on top of the educational system. Recently, studentsfrom China have been ranked top amongst all other students worldwide academically; however,Chinas top rank may surprisin
Arizona - EDL - 200
Tina ChauEducational Topic ResearchChina is ranked among one of the top countries, world-wide with well educated students.Through strict and rigorous studying these students contributes to China's reputation of academicsuperiority and innovation; howe
Arizona - EDL - 200
Name: Tina ChauSchools as Social InstitutionsUnit 1 Study GuideDefinitionsBriefly define the following terms:1. EducationLearning about the particular ways of a group2. SchoolingMore organized form of education that takes place in schools3. Schoo
Arizona - EDL - 200
Tina ChauChapter 2 Study Guide1. How are differences in the schooling system of the industrialized world best explained?Teachers are well educatedStudents are well prepared to learn thanks to familial support, exposure to learning media, andpreschool
Arizona - EDL - 200
Tina ChauChapter 3 Study GuideSchooling in the Developing World1. Describe the major general characteristics of schooling during the colonial period.Since colonial rulers were mainly interested in raw materials, cheap labor, and acquiescent subjectss
Arizona - EDL - 200
Tina ChauEDL 200SchoolingStudy Guide #4Schools and the Transmission of Knowledge1. Define transmission of school knowledge.The instruction of the uneducated members of a society by school authorities in the facts, theories,interpretations, and reas
Arizona - EDL - 200
Tina ChauUnit 5 Study GuideEDL 200Schools and Socialization1. List ten ways that schools seek to socialize students. You may use your own examples.1. When teacher says, I need your attention. It is a way to tell students that they need to be responsi
Arizona - EDL - 200
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Tina ChauEDL 200Study Guide 8Teaching and Learning in Comparative Perspective1. Using bullet format, list the key characteristics of American teachers, as described on pages 222through 228 in the text. Teachers who were themselves good students and
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Tina ChauEDL 200Study Guide 9Unite 9 Study GuideSchool Reform and the Possibilities of Schooling1. What are the four R's of school reform?Efficiency reforms, excellence reforms, enhancement reforms, and equity reforms2. What are the correlates of s
Arizona - EDL - 280
Tina ChauEDL 280APP 4Self-Assessment 61. Cheating on homework assignments: 3, O2. Cheating on exams: 3, O3. Passing in papers that were completed by someone else, as your own work: 4, O4. Lying to others to get what you want or stay out of trouble:
Arizona - EDL - 280
Tina ChauEDP 280APP 5 and 6Review Questions 2, 4, and 7 (page 317)Describe the factors that generally contribute high levels of team cohesion.The factors that generally contributes to high levels of team cohesion are when the team agrees on acommon
Arizona - EDL - 280
Tina ChauEDL 280APP 7 and 8Action Plan (p. 87) Questions 1-61. Which message-sending behavior do I want to improve the most?The message-sending behavior that I want to improve the most will have to be to no be defensive andto check my underlying ass
Arizona - EDL - 280
Tina ChauEDL 280APP 9 and 10Application 9: Work Application 4 (p. 198)Are you really open to feedback-criticism from others at work? How can you improve on acceptingcriticism?This actually depends on the situation. If there is a situation where I kn
Arizona - EDL - 280
Tina ChauEDL 280APP 11Training in Interpersonal SkillsApplication Question (p. 179) answer questions 1-41. Why do many managers who want to empower their subordinates find it difficult to delegateauthority?There are several reasons why mangers usua
Arizona - EDL - 280
Tina ChauEDL 280APP 12Developing Leadership AbilitiesYour Turn (p.118)-answer questions and tie in concepts for all 3 readings.Call to mind a recent meeting you attended. What went right and what went wrong?The last meeting that I can remember that
Arizona - EDL - 280
Tina ChauEDL 280APP 13LeadershipWork Application 7 and 8 (pp. 129 130) answer promptsWork Application 7Write a networking goal.My goal is to attain a job as a Registered Nurse. I know that this would not be too much of a problem ifI get into Nursi
Arizona - EDL - 280
Tina ChauEDL 280APP 14APP 15APP 14: Training in Interpersonal SkillsApplication Questions (p. 217) answer questions 3 4Explain the differences between authority and persuasion.Authority is designating tasks and telling a person to do something that
Arizona - EDL - 280
Tina ChauEDL 280APP 16APP 17Training in Interpersonal SkillsGroup Exercise 3 (p. 252) answer questions 1 41. Why do you think employees are reacting in this way to the study?The employee probably felt pressured to work to their full potential since
Arizona - EDL - 280
Tina ChauEDL 280Final ExamProfessional Self Development Action PlanWhat are your strengths and growth areas relative to leadership skills?I thought I had many strengths coming into this course; however, I learned that there are many areaswhere I am
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Tina ChauPaper AssignmentOption 11. Though these two tests were similar in the fact that they measure a person's IQ, the format ofeach tests were very different. The first test measured the test takers' intelligence which theyobtained from their envi
Arizona - FSHD - 117
Tina ChauPaper AssignmentOption 21. My scored for each individual test ranged from average to above average. On the word recalltest I scored a 16, on the recognition I scored a 38, and on the facial recognition I scored an 8.The recall test and facia
Arizona - FSHD - 117
Tina ChauPaper AssignmentOption 31. On the Big 5 test I scored 68% in the extroversion category, 64% in the emotional stabilitycategory, 68% in the orderliness category, 42% in the friendliness category, and 78% in theopen mindedness category. Overal
Arizona - FSHD - 117
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Arizona - INDV - 101
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Arizona - MUS - 231
Tina ChauPawlakMUS 231 002September 10, 2010Keeping Time Essay #1The origin of the word jazz had developed throughout the years in musical history. A personwith untrained ears in the musical background will define jazz to be along the lines of a typ
Arizona - MUS - 231
Tina ChauMUS 231 0021 October 2010Keeping Time Essay #2The social racial barriers between the whites and the blacks was slowly diminishing; however,in the 1920's the mixture of alcohol and music speed up the reaction. From 1919 to 1933 the AlcoholPr
Arizona - MUS - 231
Tina ChauMus 231 002PawlakOctober 18, 2010Keeping Time Essay #3In the 1930's the roles for women were very limited. Many stereotypes emerged from how awoman should properly act and what they are truly like. In an infamous magazine, Down Beat, thewr
Arizona - MUS - 231
Tina ChauNovember 8, 2010MUS 231-002PawlakPerformance Review #1On the date of Wednesday, October 20, 2010 at 7:30pm the University of Arizona's School ofMusic hosted a mini jazz concert for the public in Crowder Hall. The two groups who performeddu
Arizona - MUS - 231
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Tina ChauReview #2Discussion Group #3As You Like ItThe University of Arizona School of Theatre put on a superb William Shakespeare playtitled As You Like It, directed by Brent Gibbs. The occurring theme of this play revolved aroundthe idea of love.
Arizona - RELI - 305
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Theatre Final ReviewDramaturgyWhat? The process of researching. Researching time period, history of play, theme of the play, researchscript, why someone wrote the play, what the playwright did, language that people use. They also areresponsible for wr