tert-butyl alcohol n-butyl alcohol methyl propyl ether (c) Explain briefly why n-butyl alcohol has a much higher bp than methyl propyl ether.
|
|
- Virgil Simon
- 5 years ago
- Views:
Transcription
1 1. (15 points) Three 4 10 isomers are shown below, along with their boiling points. ( 3 ) tert-butyl alcohol n-butyl alcohol methyl propyl ether bp: (a) Based on their boiling points, which substance has the strongest intermolecular interactions in the liquid state? (b) Which has the weakest? (c) Explain briefly why n-butyl alcohol has a much higher bp than methyl propyl ether. (d) Explain briefly the difference between the first two, i.e., why does tert-butyl alcohol have a lower bp than n-butyl alcohol. 2. (15 points) Early in the semester you did a modeling experiment using yperchem. (a) In one part of the lab, you found that the energy of the optimized complex formed between formaldehyde and formamide (at right) was about 10 kj/mol lower than the energy of the separated molecules. What kind of interaction exists between the molecules? (b) In the space below, sketch the relative energy as a function of the distance between the molecules. Show clearly what happens to the energy when they get closer and when they get farther apart than they are in the drawing above.
2 (c) In another part of the modelling lab you found that the strength of a similar interaction between two "amide" groups, like the ones shown at right, was about 15 kj/mol. There must be a structural reason that the oxygen of 2 = interacts more strongly than the oxygen of 2 = with that hydrogen. What do you think that reason is? (hint: can you draw resonance structures with negative s for these two molecules? If so, how do these contributions account for the difference?) 3. (10 points) alculate the p of each of the following aqueous solutions. (a) 2.72 x 10 4 M K (b) 3.68 x M Br 4. (25 points) The equilibrium constant for the gas-phase reaction below is 6.25 x 10 4 M 1. l ==== 2 l (a) moles of l is added to a 1.00-L flask. What are the concentrations of l 2,, and l after equilibrium is established? (The "5% rule" is not appropriate here; please find the correct concentrations to three significant figures.) page 2
3 (b) mol of l 2 and mol of are added to the equilibrium mixture from part a. alculate the concentrations after equilibrium is reestablished. 5. (30 points) hloroacetic acid, l 2 2, has K a = 1.38 x (a) alculate the p of a solution made by dissolving moles of chloroacetic acid in 100 ml of water. (b) What is the extent of dissociation (in %) of the chloroacetic acid in part a? (c) When the solution from part a is combined with 100 ml of a solution of aq. 3 having a p of 0.523, what is the p of the solution that results? page 3
4 (d) What is the extent of dissociation (in %) of the chloroacetic acid in part c? (e) A new solution is prepared as described in part a, and moles of solid K is added. What is the p of the resulting solution? (f) More solid K is then added, so that the total amount of K added is exactly mol (i.e. to reach the equivalence point). What is the p of the solution? 6. (15 points) The pk a s of acetic acid and its chloro-, dichloro-, and trichloro- derivatives are shown below. 3 2 l 2 2 l 2 2 l 3 2 pk a : (a) For the most acidic compound in this series, write the acid dissociation reaction. (b) We already know that resonance stabilizes the conjugate bases of all four acids by delocalizing the charge, and this is the reason that carboxylic acids like these are much more acidic than water or alcohols. ow do you account for the effect of the chlorines on the acidities in the series above? page 4
5 7. (15 points) When 1 pound of each substance below is dissolved in a gallon of water, is the resulting solution acidic, basic, or neutral? (o need to calculate the exact p, of course!) (a) 3 3 l (b) s (c) Kl 4 (d) F (e) a Last semester's first exam was later in the term than yours, so there was one more problem on material we haven't covered yet. So expect yours to include an additional problem or two. Detailed solutions to these problems will not be made available, but we will certainly be willing to go through the problems with you in discussion sections or office hours. page 5
CHEM 109A Organic Chemistry
CHEM 109A Organic Chemistry https://labs.chem.ucsb.edu/zakarian/armen/courses.html Chapter 2 Acids and Bases Central to Understanding Organic Chemistry Draw the conjugate acid of each of the following:
More informationCHEMISTRY 110 EXAM 2 Feb 25, 2013 FORM A
EMISTRY 110 EXAM 2 Feb 25, 2013 FORM A 1. ow many valence electrons and lone pairs are in the structure of the ammonium ion? # valence electrons # lone pairs A. 8 0 B. 10 1. 8 1 D. 10 2 E. 12 3 2. Which
More informationMidterm Exam III. CHEM 181: Introduction to Chemical Principles November 25, 2014 Answer Key
Midterm Exam III EM 181: Introduction to hemical Principles ovember 25, 2014 Answer Key 1. For reference, here are the pk a values for three weak acids: 3 pk a = 7.2 pk a = 4.8 pk a = 15 ow consider this
More information4. Which one of the following aqueous solutions will have the highest vapor pressure?
Chemistry 12 Final Exam December 14, 2000 FRM A 1. For the following reaction at 1000 K, K p = 3.9 10 2. C(g) + 2 (g) What is the value of K c for this reaction? C 2 (g) A. 4.69 10 6 B. 5.79 10 6 C. 2.75
More informationChemistry 122 (Tyvoll) ANSWERS TO PRACTICE EXAMINATION I Fall 2005
hemistry 122 (Tyvoll) ANSWERS T PRATIE EXAMINATIN I Fall 2005 1. Which statement is not correct? 1) A volatile liquid has a high boiling point. 2. Which of the following compounds is predicted to have
More informationSIR MICHELANGELO REFALO
SIR MIELANGEL REFAL SIXT FRM Annual Exam 2015 Subject: hemistry ADV 2 nd Time: 3 hours ANSWER ANY 6 QUESTINS. All questions carry equal marks. You are reminded of the importance of clear presentation in
More informationChap 10 Part 4Ta.notebook December 08, 2017
Chapter 10 Section 1 Intermolecular Forces the forces between molecules or between ions and molecules in the liquid or solid state Stronger Intermolecular forces cause higher melting points and boiling
More informationmolality: m = = 1.70 m
C h e m i s t r y 1 2 U n i t 3 R e v i e w P a g e 1 Chem 12: Chapters 10, 11, 12, 13, 14 Unit 3 Worksheet 1. What is miscible? Immiscible? Miscible: two or more substances blend together for form a solution
More information1. Name the following compound. Use the IUPAC system and include the stereochemical designations.
Chemistry 51 Exam 1, Summer 2004 This is a closed book exam. The exam lasts 100 minutes. All answers must appear on the answer sheet. Only the answer sheet will be collected. Put your name on the answer
More informationThe reactions we have dealt with so far in chemistry are considered irreversible.
1. Equilibrium Students: model static and dynamic equilibrium and analyse the differences between open and closed systems investigate the relationship between collision theory and reaction rate in order
More informationChapter 3. Organic Compounds: Alkanes and Their Stereochemistry
Chapter 3. Organic Compounds: Alkanes and Their Stereochemistry Functional Group: Be able to identify and name any of the functional groups listed on Table 3.1, pages 76-77. Summary of important functional
More informationChemistry 2541, Fall 2017 Midterm Exam 1 (100 points)
hemistry 2541, all 2017 Midterm Exam 1 (100 points) Important notes: - Please use the provided Scantron form for your answers; you can keep the sheet with the questions and can use it as scratch paper
More informationChem 12: Chapters 10, 11, 12, 13, 14 Unit 3 Worksheet
C h e m i s t r y 1 2 U n i t 3 R e v i e w P a g e 1 Chem 12: Chapters 10, 11, 12, 13, 14 Unit 3 Worksheet 1. What is miscible? Immiscible? 2. What is saturated? Unsaturated? Supersaturated? 3. How does
More informationGateway 125,126,130 Fall 2006 Exam 3 p1. Section (circle one): 601 (Colin) 602 (Brannon) 603 (Mali) 604 (Xiaomu)
Gateway 125,126,130 Fall 2006 Exam 3 p1 Gateway General Chemistry 125/126/130 Exam 3 December 5, 2006 (8:00-10:00pm) Name Section (circle one): 601 (Colin) 602 (Brannon) 603 (Mali) 604 (Xiaomu) The exam
More informationORGANIC CHEMISTRY I MIDTERM TEST
Concordia University CEM 221 Winter 2005 Dr. C. Rogers, Section 02 --- MIDTERM TEST RGANIC CEMISTRY I MIDTERM TEST INSTRUCTINS: PLEASE READ TIS PAGE WILE WAITING T START YUR EXAM. This test paper includes
More informationChapter 2: Acids and Bases
hapter 2: Acids and Bases 32 hapter 2: Acids and Bases Problems 2.1 Write each acid- reaction as a proton-transfer reaction. Label which reactant is the acid and which the, as well as which product is
More informationSIR MICHELANGELO REFALO
SIR MICELANGELO REFALO SIXT FORM alf-yearly Exam 2014 Name: CEMISTRY ADV 1 ST 3 hrs ANSWER ANY 7 QUESTIONS. All questions carry equal marks. You are reminded of the importance of clear presentation in
More informationChemistry 1A, Fall 2007 KEY Midterm Exam #2 October 16, 2007 (90 min, closed book)
Chemistry 1A, Fall 2007 KEY Midterm Exam #2 ctober 16, 2007 (90 min, closed book) ame: SID: GSI ame: ame The test consists of 6 short answer questions and a page of multiple choice questions. Put your
More informationAcids and Bases: Molecular Structure and Acidity
Tutorial Contents A. Introduction B. Resonance C. Atomic Radius D. Electronegativity E. Inductive Effect F. Exercises G. Exercise Solutions Acids and Bases: Molecular Structure and Acidity Review the Acids
More informationChemistry 3351: Organic Chemistry Thursday: Sept. 7:00pm 9:00/1 st Exam. Name: (please print)
Chemistry 3351: Organic Chemistry Thursday: Sept. 23 @ 7:00pm 9:00/1 st Exam 1 Name: (please print) Page Possible Points Score 2 9 3 9 4 8 5 10 6 10 7 4 8 9 9 10 10 10 11 10 12 10 13 10 TOTAL 109 2 1.
More informationChapter 3 An Introduction to Organic Reactions: Acids and Bases
There are 4 types of Organic Reactions Chapter 3 An Introduction to Organic Reactions: SUBSTITUTION: ADDITION: X Y + A X A + Y Example Example A B + X Y A B X Y ELIMINATION There are 4 Types of Organic
More informationExam 2. CHEM Spring Name: Class: Date:
CHEM-112-01 Spring 2012 Name: Class: Date: 1. Record your name and ID number on the scantron form. 2. Record the test ID letter in the top right box of the scantron form. 3. Record all of your answers
More informationAmino acids have the general structure: All amino acids have at least two acidic protons. One is the proton
Worksheet rganic Acids and Bases II Amino Acids Acids are proton donors in aqueous solutions: A + 2 3 + + A - acid base conjugate conjugate base acid The strength of an acid is measured by the [ 3 + ]
More informationLab Activity 9: Introduction to Organic Chemical Reactivity, Lab 5 Prelab, Reflux
Lab Activity 9: Introduction to Organic Chemical Reactivity, Lab 5 Prelab, Reflux Objectives 1. Identify structural features (pi bonds, bond polarity, lone pairs) of a compound 2. Determine whether a structural
More informationCHEMISTRY 110 Final EXAM Dec 17, 2012 FORM A
CEMISTRY 110 Final EXAM Dec 17, 2012 FORM A 1. Given the following reaction which of the following statements is true? Fe(s) + CuCl 2 (aq)! Cu(s) + FeCl 2 (aq) A. Iron is oxidized and copper is reduced.
More informationLab 2. Go Their Separate Ways: Separation of an Acid, Base, and Neutral Substance by Acid-Base Extraction
Lab 2. Go Their Separate Ways: Separation of an Acid, Base, and Neutral Substance by Acid-Base Extraction How can I use an acid-base reaction to separate an acid-base-neutral mixture? Objectives 1. use
More informationCHEMISTRY 110 EXAM 2 Oct.
EMISTRY 110 EXAM 2 ct. 15, 2012 FRM A 1. Which of the following is an incorrect formula for a neutral compound made from the given ions?! "#$%&'! #'%&'! (&)*+,#! -.!! aluminum oxide Al 2 3 /.!! magnesium
More informationName Final Exam Spring 2002 Page (16 points) Acetylsalicylic acid, the molecule pictured here, is better known as aspirin.
Name Final Exam Spring 2002 Page 1 1. (16 points) Acetylsalicylic acid, the molecule pictured here, is better known as aspirin. 1 A D 2 B 3 4 Describing the bonding in aspirin, acetylsalicylic acid. (a)
More informationChemistry 11 Course Review
Unit 1. Nature of Matter lass Assignments Hand-In #1 Unit onversions Hand-In #2 Significant Digits Hand-In #3 Separation Methods and Phase hange 1. Give the number of significant digits in each of the
More informationHEMISTRY 110 EXAM 3 April 6, 2011 FORM A When the path is blocked, back up and see more of the way. 1. A 250 L vessel is evacuated and then connected to a 50.0 L bulb with compressed nitrogen. The pressure
More informationKey Multiple Choice (5 pts each)
Key Multiple Choice (5 pts each) Identify the choice that best completes the statement or answers the question. CAREFULLY fill in the correct answer on the BUBBLE SHEET provided. Marks on this exam paper
More information1. methyl 2. methylene 3. methine 4. primary 5. secondary 6. tertiary 7. quarternary 8. isopropyl
hem 201 Sample Midterm Beauchamp Exams are designed so that no one question will make or break you. The best strategy is to work steadily, starting with those problems you understand best. Make sure you
More informationQuick Review. 1. Hybridization. 2. Delocalization. 3. We will not be talking about Molecular Orbital Model.
Quick Review 1. ybridization. 2. Delocalization. 3. We will not be talking about Molecular Orbital Model. **OUR EXAM II IS TURSDAY April 2 nd at 7pm** *BQ5, BQ6 and BQM are in 66 Library *BQ1, BQ2, BQ3,
More informationChem GENERAL CHEMISTRY II
GENERAL CHEMISTRY II CHEM 206 /2 51 Final Examination December 19, 2006 1900-2200 Dr. Cerrie ROGERS x x programmable calculators must be reset Chem 206 --- GENERAL CHEMISTRY II LAST NAME: STUDENT NUMBER:
More information2.26 Intermolecular Forces
2.26 Intermolecular Forces Intermolecular forces are the relatively weak forces that exist between molecules. These govern the physical properties such as boiling point, melting point, solubility in solvents
More informationChemistry Exam 3 (100 points) December 5, b. solid HF
hemistry 1303.002 Name Exam 3 (100 points) December 5, 2017 On my honor, I have neither given nor received unauthorized aid on this exam. Signed Date 1. (2 points) In which of the following will delocalized
More informationU N I T T E S T P R A C T I C E
South Pasadena AP hemistry Name 4 Acid Base Solutions Period Date U N I T T E S T P R A T I E Part 1 Multiple hoice You should allocate 30 minutes to finish this portion of the test. No calculator should
More informationCh 12 and 13 Practice Problems
Ch 12 and 13 Practice Problems The following problems are intended to provide you with additional practice in preparing for the exam. Questions come from the textbook, previous quizzes, previous exams,
More informationName:. Correct Questions = Wrong Questions =.. Unattempt Questions = Marks =
Name:. orrect Questions = Wrong Questions =.. Unattempt Questions = Marks = 1. (11%) A(g) + 3B(g) r 2(g) Use the tabulated data to answer the questions about this reaction, which is carried out in a 1.0
More informationChapter 8. Acidity, Basicity and pk a
Chapter 8 Acidity, Basicity and pk a p182 In this reaction water is acting as a base, according to our definition above, by accepting a proton from HCl which in turn is acting as an acid by donating a
More information2.1) Name the following 4 compounds: [1 point each, 4 total] 2.2) Draw the following compounds in the box provided [1 point each, 4 total]
The exam will be composed of 3 sections. The first section will contain ~30 multiple choice marked at 1 point each. The second section will consist of ~6 questions of ~4 points each for ~24 points. The
More informationLab 3: Solubility of Organic Compounds
Lab 3: Solubility of rganic Compounds bjectives: - Understanding the relative solubility of organic compounds in various solvents. - Exploration of the effect of polar groups on a nonpolar hydrocarbon
More information2. Acids and Bases (text )
2009, Department of hemistry, The University of Western ntario 2.1 2. Acids and Bases (text 2.1 2.6) Acid-base reactions are one of the most important reaction types in organic chemistry and biology, e.g.:
More information4. Which of the following gas molecules will have the highest average velocity at 500K? a. H 2 b. He c. CH 4 d. C 2H 6
Multiple hoice (3 pts each) 1. In which of the following processes will work be positive? Assume the pressure remains constant for all examples. a. 2(l) 2(g) at constant temperature b. 2 8 18(l) + 25 2(g)
More information2014 Academic Challenge Sectional Chemistry Exam Solution Set
2014 Academic hallenge Sectional hemistry Exam Solution Set 1. E. A V-shaped molecule is possible in either the trigonal planar or the tetrahedral electron group geometry (A or B). 2. B. The fact that
More informationCST Review Part 2. Liquid. Gas. 2. How many protons and electrons do the following atoms have?
CST Review Part 2 1. In the phase diagram, correctly label the x-axis and the triple point write the names of all six phases transitions in the arrows provided. Liquid Pressure (ATM) Solid Gas 2. How many
More information2.26 Intermolecular Forces
2.26 Intermolecular Forces Intermolecular forces are the relatively weak forces that exist between molecules. These govern the physical properties such as boiling point, melting point, solubility in solvents
More informationNChO 2006 ANNOTATED ANSWERS
NChO 2006 ANNOTATED ANSWERS 1. D HCl H 2 and CH 4 are nonpolar and will dissolve very little in polar water. CO is polar and will dissolve OK, but HCl is very polar and dissolves amazingly well in water.
More informationCHE1502. Tutorial letter 203/1/2016. General Chemistry 1B. Semester 1. Department of Chemistry
E1502/203/1/2016 Tutorial letter 203/1/2016 General hemistry 1B E1502 Semester 1 Department of hemistry This tutorial letter contains the answers to the questions in assignment 3. FIRST SEMESTER: KEY T
More informationChem 1515 Section 2 Problem Set #4. Name Spring 1998
Chem 1515 Section 2 Problem Set #4 Name Spring 1998 TA Name Lab Section # ALL work must be shown to receive full credit. Due Wednesday, February 4th PS4.1. Describe all the energy changes which must be
More informationChapter 3 Acids and Bases"
Chapter 3 Acids and Bases BrØnsted-Lowry Acids and Bases A BrØnsted-Lowry acid is a proton donor. A BrØnsted-Lowry base is a proton acceptor. H + = proton Acids and Bases Reactions of BrØnsted-Lowry Acids
More informationCHEMpossible. Final Exam Review
CHEMpossible Final Exam Review 1. Given the following pair of reactions and their equilibrium constants: 2NO 2 (g) 2NO (g) + O 2 (g) K c = 15.5 2NO (g) + Cl 2 (g) 2 NOCl (g) K c = 3.20 10-3 Calculate a
More information1. (8 pts) Circle the formula (only one) that best fits each of the following descriptions:
1. (8 pts) Circle the formula (only one) that best fits each of the following descriptions: a. largest radius 2 b. stronger acid (first ionization) HN 3 H 3 P 4 H 2 S 4 c. largest radius N 3 2 F e. highest
More informationChem 121 Final Exam. (2) 1) A cube measures 3.21 cm on one side. Calculate its volume in liters (cm 3 = ml) and put the answer in the box.
Chem 121 Final Exam Page 1 of 13 (2) 1) A cube measures 3.21 cm on one side. Calculate its volume in liters (cm 3 = ml) and put the answer in the box. (2) 2) The charge on a phosphorus atom is neutral
More information4. What is the number of unpaired electrons in Ni? Chemistry 12 Final Exam Form A May 4, 2001
Chemistry 12 Final Exam Form A May 4, 2001 In all questions involving gases, assume that the ideal-gas laws hold, unless the question specifically refers to the non-ideal behavior. 1. Which of the following
More informationIntermolecular Forces
Intermolecular Forces Molecular Compounds The simplest molecule is H 2 : Increased electron density draws nuclei together The pair of shared electrons constitutes a covalent bond. Intermolecular Forces
More informationfor more visit
JUNE 2011 1. (a) Outline the two essential steps needed to prepare a 0.025mol dm -3 solution of sodium oxalate (Na 2C 20 4) in a 250cm 3 volumetric flask. (RMM of Na 2C 20 4= 134) (2 marks) (b) Determine
More informationC H C H 3. aspirin CHEMISTRY Topic #4: Organic Chemistry Fall 2018 Dr. Susan Findlay See Exercises in Topic 12
= = 3 EMISTY 2000 aspirin Topic #4: rganic hemistry Fall 2018 Dr. Susan Findlay See Exercises in Topic 12 rganic Acids (arboxylic Acids) When you hear the term organic acid, it s generally referring to
More informationEXAM III Nov. 1, 2018
EM 105 Dr. Lammi Name: EXAM III Nov. 1, 2018 You may work until 10:50 to complete this exam. Please show all work in the space provided or on the attached scratch page. Remember to report your final answers
More information1. Complete the template below to show the stereochemistry of (3R,4R) 3-chloro-4,5,5- trimethyl-hexane-1,4-diol.
Chemistry 51 Exam 1, Fall 2004 This is a closed book exam. The exam lasts 50 minutes. All answers must appear on the answer sheet. Only the answer sheet will be collected. Put your name on the answer sheet
More informationGeorgia Institute of Technology. CHEM 1310: Exam II. October 21, 2009
Georgia Institute of Technology CHEM 1310: Exam II October 21, 2009 Select the best answer for each of the following problems. Each problem is worth 5 points with no partial credit. 1. A solution is prepared
More informationAPC Spring Break Take-Home Exam Instructions
APC Spring Break Take-Home Exam Instructions Complete all exam questions on separate paper. Show all work to receive credit. Partial credit will be awarded! Staple all papers together. Do NOT include the
More informationChemistry 232 PRACTICE Midterm 2 September / October 2010 Your name:
1 You will need to be able to show picture ID to take the test. D NT PEN TIS TEST UNTIL EVERYNE AS NE I encourage following instructions: ten (10) points will be deducted if items 1 to 4 below are not
More informationCHEMISTRY 110 EXAM 3 Nov. 11, 2013 ORM A!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" 1. The cylinder shown below is filled with enough N 2 gas at 25 o C to reach a
More informationChemistry 2000 Spring 2006 Final Examination
Chemistry 2000 Spring 2006 Final Examination Name: Student number: Time: 3 hours Aids allowed: Calculator Instructions: Answer all questions in the spaces provided. You can use the backs of pages for scratch
More informationAnswer Key Multiple Choice (PART I)
Answer Key Multiple Choice (PART I) 1. B 2. B 3. C 4. A 5. D 6. D 7. A 8. C 9. C 10. D 11. C 12. D 13. C 14. D 15. B 16. B 17. D 18. D 19. A 20. D 21. B 22. D 23. A 24. B 25. C 26. C 27. B 28. A 29. D
More informationCh 15 and 16 Practice Problems
Ch 15 and 16 Practice Problems The following problems are intended to provide you with additional practice in preparing for the exam. Questions come from the textbook, previous quizzes, previous exams,
More information/15. Chem 202 Name KEY Exam 1 January 30, (3 pts total, 15 pts each) circle the best answer
Chem 202 KEY Exam 1 January 30, 2006 1. (3 pts total, 15 pts each) circle the best answer Which of the following is (are) true? a. Charles Law assume V and T are constant b. Boyles law assumes P and V
More informationSUPPLEMENTAL HOMEWORK SOLUTIONS WEEK 8
SUPPLEMETAL MEWRK SLUTIS WEEK 8 Assignment for Tuesday, March 7 th 7.36 a) + + b) + + c) 6 14 4 + 6 14 4 + + d) 6 5 3 7 + 6 5 7 + Be sure to write the correct charges for the products. 7.4 a) l + l + b)
More informationDepartmental Final Examination. Organic Chemistry I Caffein
Departmental Final Examination rganic Chemistry I 2423 Caffein Name CEMISTRY 2423 FINAL EXAM FALL, 2005 DIRECTINS: A periodic table is attached at the end of this exam. Please answer all questions as completely
More informationChemistry 1A, Fall 2006 Final Exam, Version B Dec 12, 2006 (180 min, closed book)
Name: SID: GSI Name: Chemistry 1A, Fall 2006 Final Exam, Version B Dec 12, 2006 (180 min, closed book) There are 60 Multiple choice questions worth 4.34 points each. There are 13 short answer questions.
More informationName AP Chemistry / / Chapter 5 Collected AP Exam Free Response Questions Answers
Name AP Chemistry / / Chapter 5 Collected AP Exam Free Response Questions 1980 2010 - Answers 1982 - #5 (a) From the standpoint of the kinetic-molecular theory, discuss briefly the properties of gas molecules
More informationChem 127, Final Exam December 13, 2002
I. (55 points) This part of the final corresponds to Exam I. It covers the material in Chapters 1, 2 and 3. A. (20 points) The following questions are NOT related to each other. 1. Express 1 part per million
More informationCHEM 36 General Chemistry EXAM #2 March 13, 2002
CHEM 36 General Chemistry EXAM #2 March 13, 2002 Name: Key INSTRUCTIONS: Read through the entire exam before you begin. Answer all of the questions. For questions involving calculations, show all of your
More informationChapter 2 Acids and Bases. Arrhenius Acid and Base Theory. Brønsted-Lowry Acid and Base Theory
hapter 2 Acids and Bases A significant amount of chemistry can be described using different theories of acids and bases. We ll consider three different acid-base theories (listed in order of increasing
More informationCHEMISTRY 110 EXAM 2 Oct. 11, 2010 FORM A
EMISTRY 110 EXAM 2 Oct. 11, 2010 FORM A --------------------------------------------------------------------------------- 1. What is the empirical formula that corresponds to a compound that contains only
More information2. Write a balanced chemical equation which corresponds to the following equilibrium constant expression.
Practice Problems for Chem 1B Exam 1 Chapter 14: Chemical Equilibrium 1. Which of the following statements is/are CORRECT? 1. For a chemical system, if the reaction quotient (Q) is greater than K, products
More informationChapter 01 Structure Determines Properties part 2
Chapter 01 Structure Determines Properties part 2 CEM 341: Spring 2012 Prof. Greg Cook Resonance Section 1.8 Resonance Some molecules may have more than one correct Lewis structure These are NT isomers.
More informationChemistry 1A, Fall 2006 Final Exam, Version B Dec 12, 2006 (180 min, closed book)
Name: SID: GSI Name: Chemistry 1A, Fall 2006 Final Exam, Version B Dec 12, 2006 (180 min, closed book) There are 60 Multiple choice questions worth 4.34 points each. There are 13 short answer questions.
More informationSolutions are HOMOGENEOUS mixtures and can be gases, liquids, or solids.
UNIT 4 Solutions and Solubility Chapter 8 Solutions and Concentration Types of Solutions The simplest solutions contain 2 substances: 1. SOLVENT o any substance that has another substance o dissolved in
More information10. 2 P R O B L E M S L I Q U I D S A N D G A S E S
South Pasadena AP Chemistry Name 10 States of Matter Period Date 10. 2 P R B L E M S L I Q U I D S A N D G A S E S 1. Use the following table to answer these questions. Vapor Pressures of Various Liquids
More informationNational 4/5 Chemistry
National 4/5 hemistry omework Unit 2 Nature s hemistry Please do not write on these booklets questions should be answered in homework jotters. Part 1 Introduction to Unit 2 1. You are given three unlabelled
More informationLearning Guide for Chapter 7 - Organic Reactions I
Learning Guide for Chapter 7 - rganic Reactions I I. Introduction to Reactions II. Principles of Kinetics III. Principles of Thermodynamics IV. Nucleophiles and Electrophiles V. Acids and Bases What a
More information9.1 Water. Chapter 9 Solutions. Water. Water in Foods
Chapter 9 s 9.1 Water 9.1 Properties of Water 9.2 s 9.3 Electrolytes and Nonelectrolytes 9.6 Percent Concentration 9.7 Molarity Water is the most common solvent. The water molecule is polar. Hydrogen bonds
More informationMolecular Models and Isomerism
Name Lab Day Molecular Models and Isomerism Introduction: When two or more compounds have the same molecular formula but different structural arrangements of their atoms, the various individual compounds
More informationSolutions. Chapter 14 Solutions. Ion-Ion Forces (Ionic Bonding) Attraction Between Ions and Permanent Dipoles. Covalent Bonding Forces
Solutions Chapter 14 1 Brief Review of Major Topics in Chapter 13, Intermolecular forces Ion-Ion Forces (Ionic Bonding) 2 Na + Cl - in salt These are the strongest forces. Lead to solids with high melting
More informationChemistry 006 Practice Final. 6. What is the predominant intermolecular force in carbon tetrachloride, CCl4?
hemistry 00 Practice Final 1. The boiling point of l(l) is higher than the boiling point of Ar(l) as a result of hydrogen bonding higher formula mass stronger London forces permanent dipole forces ion-ion
More information1. Which compound would you expect to have the lowest boiling point? A) NH 2 B) NH 2
MULTIPLE CICE QUESTINS Topic: Intermolecular forces 1. Which compound would you expect to have the lowest boiling point? A) N 2 B) N 2 C) N D) E) N Ans: : N 2 D Topic: Molecular geometry, dipole moment
More informationCalifornia State Polytechnic University, Pomona
alifornia State Polytechnic University, Pomona 2-1 Dr. Laurie S. Starkey, rganic hemistry M 314, Wade hapter 2: Structure and Physical Properties of rganic Molecules hapter utline 1) rbitals and Bonding
More informationCHEMISTRY 1A Fall 2010 Final Exam Key
CHEMISTRY 1A Fall 2010 Final Exam Key YOU MIGHT FIND THE FOLLOWING USEFUL; 0.008314 kj H E ( n)rt R = K mol 0.00418 kj q C cal m w T g C H rxn = H f (products) H f (reactants) Electronegativities H 2.2
More informationChapter 8 : Covalent Bonding. Section 8.1: Molecular Compounds
Chapter 8 : Covalent Bonding Section 8.1: Molecular Compounds What is a molecule? A molecular compound? A molecule is a neutral group of atoms joined together by covalent bonds A molecular compound is
More informationIntermolecular and Ionic Forces
Intermolecular and Ionic Forces Comparing IMF Using Percent Evaporation: This lab will explore changing masses during evaporation of organic liquids. The decrease in mass is related to the strength of
More information2. What property of water allows a needle to float on it without sinking? Answer: surface tension
Ch 12 and 14 Practice Problems - KEY The following problems are intended to provide you with additional practice in preparing for the exam. Questions come from the textbook, previous quizzes, previous
More informationFinal Exam. CHEM 181: Introduction to Chemical Principles Answer Key. 1. The major resonance structure of 1,4-diazepine is shown below:
Final Exam EM 181: Introduction to hemical Principles Answer Key 1. The major resonance structure of 1,4-diazepine is shown below: or Show all reasonable resonance structures; label them as major (if equivalent
More informationFall Possibly Useful Information: 1 atm = lb/in 2 = kpa. 1 atm = 101,325 N/m 2 = 760 mmhg. 1 atm = 101,325 Pa = 1.
Chemistry 122 (Tyvoll) Fall 2005 PRACTICE EXAMINATION I Possibly Useful Information: 1 atm = 14.70 lb/in 2 = 101.325 kpa 1 atm = 101,325 N/m 2 = 760 mmg 1 atm = 101,325 Pa = 1.01325 bar 1 atm = 1013.25
More informationSUPeR Chemistry CH 222 Practice Exam
SUPeR Chemistry CH 222 Practice Exam This exam has been designed to help you practice working multiple choice problems over the material that will be covered on the first CH 222 midterm. The actual exams
More informationCHEM1902 Example Multiple Choice Questions
M902 xample Multiple hoice Questions The following multiple choice questions are provided to illustrate the type of questions used in this section of the paper and to provide you with extra practice. It
More information49 56 (8 Q's) Solutions YOU WILL SKIP THIS SECTION ENTIRELY (8 Q's) Organic Chemistry 12 none
ACS Standardized Exam for CHM 122 Breakdown of Questions by Topic Question # Topic Covered Problem Set Section in ACS Book 1 12 (12 Q's) Kinetics 1, 2 Dynamics 13 24 (12 Q's) Equilibrium 3, 4, 5, 6, 7
More information2. If a gas is released in a reaction (ex: Hydrogen gas bubbles off), is it written as a reactant or a product?
PRE-AP CHEMISTRY SPRING FINAL EXAM REVIEW Name _ Period Exam Date 100% COMPLETION OF THIS REVIEW BY THE DAY OF YOUR FINAL EXAM WILL COUNT AS A 5 POINT BONUS ADDED TO YOUR FINAL EXAM SCORE. THERE WILL BE
More informationWhat determines whether a substance will be a solid, liquid, or gas? Thursday, April 24, 14
What determines whether a substance will be a solid, liquid, or gas? Answer: The attractive forces that exists between its particles. Answer: The attractive forces that exists between its particles. For
More information