Chemistry 122 (Tyvoll) ANSWERS TO PRACTICE EXAMINATION I Fall 2005
|
|
- Sheena Flowers
- 6 years ago
- Views:
Transcription
1 hemistry 122 (Tyvoll) ANSWERS T PRATIE EXAMINATIN I Fall Which statement is not correct? 1) A volatile liquid has a high boiling point. 2. Which of the following compounds is predicted to have the highest vapor pressure at STP? 2) 4 3. Which substance requires the smallest quantity of heat to melt a 1.0-g sample? 4) I (MM, g mol- 1) (Δfusion, kj/mol) Page Ref: Sec In which substance would the dispersion forces be greatest? 5) I2 5. Which would have the lowest boiling point? 1) l 2 6. Which of the following substances would exhibit dipole-dipole intermolecular forces? 5) N 3 7. Which idea is incorrect? 4) Polar molecules always have higher boiling points than nonpolar molecules. Page Ref: Sec Above the critical point for water (374 0 and 218 atmospheres), 3) water cannot be liquefied, no matter how much pressure is applied 9. What is the percent by mass of a solution made by dissolving 55.0 g Kl in 125 g water? 1) What is the mole fraction of biphenyl, 12 10, in a solution prepared by dissolving 22.5 g (s) in 285 g of benzene, 6 6 (l)? 2) Page Ref: Sec What mass of phenol, 6 5, (FW = 94.11) must be dissolved in 25.0 g of naphthalene to produce a solution that is 0.22 m in phenol? 2) 0.52 g
2 12. alculate the molarity of a solution containing 40.0 g glucose ( , g/mol) in enough liquid ethanol ( 2 5, 46.0 g/mol) to make 40.0 ml of solution. 4) Which statement is incorrect? 1) When 40.0 ml of ethanol and 60.0 ml of water are mixed, the volume of the mixture is ml. Page Ref: Sec Which of the following hypothetical steps is predicted to be exothermic? 3) separated solvent and solute molecules solution Page Ref: Sec Which statement is correct? 2) A saturated solution involves a dynamic equilibrium between dissolving and crystallization. Page Ref: Sec. 12.4
3 hemistry 122 (Tyvoll) Fall 2005 PRATIE EXAMINATIN I Part II Answers to Problems B 1. (5 points) Part II. ompletion and Short Answer. onsider the phase diagram shown at the right. Identify the solid, liquid and vapor phase regions on the actual diagram and then the processes represented by each of the following tie lines: Solid Liquid A sublimation temperature B melting point A boiling point Gas 2. (10 points) Melting Points and boiling points. (a) onsider the following elements and compounds: LiBr,, a, 3 Arrange these substances in order of increasing melting point. < 3 < LiBr < a Explain your reasoning as completely but as concisely as possible and 3 are molecular; LiBr and a are ionic; ionic compounds have stronger attractive forces than molecular compounds, so lowest melting points are for and 3. < 3 since has dispersion/dipole forces, while 3 has these plus -bonds. a > LiBr since in a, a is a 2+ and is 2-, while Li is Li 1+ and Br is Br 1-. Stronger forces of attraction when charge is larger. (b) ompounds A, B, and D (all of whose molecular structures have two carbon atoms) have the following boiling points: A, ; B, ;, ; and D, The structures of these four compounds are shown below; identify the compounds by placing the correct letter (A, B, or D) in the blank beneath the structure: B D A Explain your reasoning as completely but as concisely as possible. B (dispersion); D (dispersion and dipole); (dispersion, dipole, -bonds); A (dispersion, dipole, more chances for -bonds);
4 3. (10 points) The molar heat of vaporization of methanol ( 3 ) is 38.0 kj/mol at 25 o. ow many joules (J) are required to convert exactly kg of methanol (32.04 g/mol) from liquid to vapor? You must show all work for credit or partial credit!? J = (1.000 kg)(1000 g/kg)(1 mol/32.04 g)(38.0 kj/mol)(1000 J/kJ) = x 10 6 J 4. (10 points) When g of sorbitol, a molecular compound sometimes used as a sugar substitute, were dissolved in exactly g of water, the boiling point of the water was raised from to If K b = /molal for water, (a) calculate the molality of the solution (Show all work for credit!) ΔT = K b m ( ) = ( /molal) m = m = ( )(1 molal/ ) = m (b) calculate the molar mass of sorbitol mol sorbitol = (2.746 mol/1000 g 2 )(100.0 g 2 ) = mol sorbitol M = (50.00 g sorbitol/ mol sorbitol) = g/mol 5. (10 points) ydrogen bonds can form between (a) water molecules and acetic acid molecules and between (b) water molecules and ethanol molecules. Draw all the water molecules that can hydrogen bond to an acetic acid molecule and all the water molecules that can hydrogen bond to an ethanol molecule (two pictures). acetic acid ethanol Based on your drawings, which should have the higher water solubility (affinity), acetic acid or ethanol? Acetic acid, since it has an extra oxygen site (=) for -bonding
5 6. (10 points) In a certain experiment, 144 mg of aspartame, an artificial sweetener, were dissolved in water and diluted to a final volume of exactly ml. The osmotic pressure (Π), measured at 25 0, was 364 mmg. Use these data to calculate the molar mass (M) of aspartame. Π = MRT (364 mmg)(1 atm/760 mmg) = M ( L atm/mol K)(298 K) atm = M (24.45 L/mol) M = 1.96 x 10-2 mol/l mol aspartame = (1.96 x 10-2 mol/l)( L) = 4.90 x 10-4 mol aspartame M = (0.144 g aspartame)/( 4.90 x 10-4 mol aspartame) = 2.94 x 10 2 g/mol
Fall 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 informationSeptember 28, Possibly Useful Information: 1) ( ) ( ) ( ) ( ) ( ) R = L atm / mol K. 2) ( ) ( ) ( ) h = 6.
Name Student ID # CEMISTRY 122 [Tyvoll] EXAM I September 28, 2007 1 2 3 4 5 Possibly Useful Information: 1) ( ) ( ) ( ) ( ) ( ) R = 0.0821 L atm / mol K 2) ( ) ( ) ( ) h = 6.63 x 10-34 J s 3) ( ) ( ) (
More informationChapter 11 Review Packet
Chapter 11 Review Packet Name Multiple Choice Portion: 1. Which of the following terms is not a quantitative description of a solution? a. molarity b. molality c. mole fraction d. supersaturation 2. Which
More informationA) sublimation. B) liquefaction. C) evaporation. D) condensation. E) freezing. 11. Below is a phase diagram for a substance.
PX0411-1112 1. Which of the following statements concerning liquids is incorrect? A) The volume of a liquid changes very little with pressure. B) Liquids are relatively incompressible. C) Liquid molecules
More informationConcentration of Solutions
Chapter 11 Textbook Assigned Problems Exercises Concentration of Solutions 25. Because the density of water is 1.00 g/ml, 100.0 ml of water has a mass of 100. g. density = = 1.06 g/ml = 1.06 g/cm 3 mol
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 informationPX-III Chem 1411 Chaps 11 & 12 Ebbing
PX-III Chem 1411 Chaps 11 & 12 Ebbing 1. What is the name for the following phase change? I 2 (s) I 2 (g) A) melting B) condensation C) sublimation D) freezing E) vaporization 2. Which of the following
More informationChem 1100 Pre-Test 3. Multiple Choice Identify the choice that best completes the statement or answers the question.
Chem 1100 Pre-Test 3 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. An open-tube manometer is used to measure the pressure in a flask. The atmospheric
More informationSolutions. Solution Formation - Types of Solutions - Solubility and the Solution Process - Effects of Temperature and Pressure on Solubility
Solutions Solutions Solution Formation - Types of Solutions - Solubility and the Solution Process - Effects of Temperature and Pressure on Solubility Colligative Properties - Ways of Expressing Concentration
More informationUseful Information Provided on Exam 1. Sections Covered on Exam , 10.2, 10.8,
Chem 101B Exam 1 Study Questions Name: Chapters 10(partial), 11 & 12(partial) Review Tuesday 2/7/2017 Due on Exam Thursday 2/9/2017 (Exam 1 date) This is a homework assignment. Please show your work for
More information11/4/2017. General Chemistry CHEM 101 (3+1+0) Dr. Mohamed El-Newehy. Chapter 4 Physical Properties of Solutions
General Chemistry CHEM 11 (3+1+) Dr. Mohamed El-Newehy http://fac.ksu.edu.sa/melnewehy Chapter 4 Physical Properties of Solutions 1 Types of Solutions A solution is a homogenous mixture of 2 or more substances.
More informationSoluble: A solute that dissolves in a specific solvent. Insoluble: A solute that will not dissolve in a specific solvent. "Like Dissolves Like"
Solutions Homogeneous Mixtures Solutions: Mixtures that contain two or more substances called the solute and the solvent where the solute dissolves in the solvent so the solute and solvent are not distinguishable
More informationPLEASE DO NOT MARK ON THE EXAM. ALL ANSWERS SHOULD BE INDICATED ON THE ANSWER SHEET. c) SeF 4
Chem 130 EXAM 4 Fall 99 PLEASE DO NOT MARK ON THE EXAM. ALL ANSWERS SHOULD BE INDICATED ON THE ANSWER SHEET QUESTIONS 1-5 MAY HAVE MORE THAN ONE POSSIBLE ANSWER CIRCLE ALL CORRECT RESPONSES TO EACH QUESTION
More informationChem 124 Exam 1 Spring 2016 Version 1 Name
Chem 124 Exam 1 Spring 2016 Version 1 Name TOTAL POINTS - 116 MULTIPLE CHOICE 1.4 POINTS EACH 1) A molecule containing a central atom with sp 3 hybridization has a(n) electron geometry. A) linear B) tetrahedral
More informationSolutions and Their Properties
Chapter 11 Solutions and Their Properties Solutions: Definitions A solution is a homogeneous mixture. A solution is composed of a solute dissolved in a solvent. When two compounds make a solution, the
More informationName: Score: /100. Part I. Multiple choice. Write the letter of the correct answer for each problem. 3 points each
Name: Score: /100 Part I. Multiple choice. Write the letter of the correct answer for each problem. 3 points each 1. Which of the following contains the greatest number of moles of O? A) 2.3 mol H 2 O
More informationName: Score: /100. Part I. Multiple choice. Write the letter of the correct answer for each problem. 3 points each
Name: Score: /100 Part I. Multiple choice. Write the letter of the correct answer for each problem. 3 points each 1. Which of the following contains the greatest number of moles of O? A) 2.3 mol H 2 O
More informationPSI AP Chemistry: Solutions Practice Problems
PSI AP Chemistry: Solutions Practice Problems Name Solutions: Mixtures, Solubility and Concentration Classwork 1. A student determined that there were 0.032 grams of oxygen gas dissolved in a 200.0 ml
More information(name) Place the letter of the correct answer in the place provided. Work must be shown for non-multiple choice problems
(name) Place the letter of the correct answer in the place provided. Work must be shown for non-multiple choice problems 1. According to Raoults Lab the change in the vapor pressure of a solution containing
More information1) Define the following terms: a) solution, b) miscible, c) hydration, d) percent by mass (solute), e) colligative property, f) hypotonic.
Problems - Chapter 13 (with solutions) 1) Define the following terms: a) solution, b) miscible, c) hydration, d) percent by mass (solute), e) colligative property, f) hypotonic. a) solution - A homogeneous
More informationChem 1100 Pre-Test 3. Multiple Choice Identify the choice that best completes the statement or answers the question.
Chem 1100 Pre-Test 3 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Determine the oxidation number of the underlined element in K 2CO 3. a. 1 b. 2 c.
More informationCHEMISTRY 122 [Tyvoll] PRACTICE EXAM II Possibly Useful Information: 2) ( ) ( ) ( ) ( ) ( ) R = L atm/mol K
Name Student ID # CHEMISTRY 122 [Tyvoll] PRACTICE EXAM II Spring 2008 1 2 3 4 5 Possibly Useful Information: 1) ( ) ( ) ( ) ( ) ( ) d (H 2 O) = 1.00 g/ml 2) ( ) ( ) ( ) ( ) ( ) R = 0.0821 L atm/mol K 3)
More information1. Draw pictures on the atomic level for a solid, a liquid, and a gas.
EXTRA HOMEWORK 3A 1. Draw pictures on the atomic level for a solid, a liquid, and a gas. 2. What must be true about the kinetic energy of the particles making up a liquid if the liquid is to turn into
More information1) Define the following terms: a) solution, b) miscible, c) hydration, d) percent by mass (solute), e) colligative property, f) hypotonic.
Problems - Chapter 13 (with solutions) 1) Define the following terms: a) solution, b) miscible, c) hydration, d) percent by mass (solute), e) colligative property, f) hypotonic. a) solution - A homogeneous
More information3.Which of the following has the highest melting temperature? A) H 2 O B) CO 2 C) S 8 D) MgF 2 E) P 4
2. Which if the following is the correct order of boiling points for KNO 3, CH 3 OH, C 2 H 6, Ne? A) Ne < CH 3 OH < C 2 H 6 < KNO 3 B) KNO 3 < CH 3 OH < C 2 H 6 < Ne C) Ne < C 2 H 6 < KNO 3 < CH 3 OH D)
More informationChem 1A Dr. White Fall 2015 Exam 3 Practice Problems
Exam 3 Practice Problems 1. The face centered cubic cell of copper has an edge length of 0.362 nm. Calculate the density of copper (g/cm 3 ). 2. Consider the following ionic substances and arrange them
More informationChapter 12. Physical Properties of Solutions. Chemistry, Raymond Chang 10th edition, 2010 McGraw-Hill
Chemistry, Raymond Chang 10th edition, 2010 McGraw-Hill Chapter 12 Physical Properties of Solutions Ahmad Aqel Ifseisi Assistant Professor of Analytical Chemistry College of Science, Department of Chemistry
More information1) Define the following terms: a) solution, b) miscible, c) hydration, d) percent by mass (solute), e) colligative property, f) hypotonic.
Problems - Chapter 13 (with solutions) 1) Define the following terms: a) solution, b) miscible, c) hydration, d) percent by mass (solute), e) colligative property, f) hypotonic. a) solution - A homogeneous
More informationAn aqueous solution is 8.50% ammonium chloride by mass. The density of the solution is g/ml Find: molality, mole fraction, molarity.
66 An aqueous solution is 8.50% ammonium chloride by mass. The density of the solution is 1.024 g/ml Find: molality, mole fraction, molarity. Find molality: mass percent molality Assuming 100 g solution,
More informationCHM151 Quiz Pts Fall 2013 Name: Due at time of final exam. Provide explanations for your answers.
CHM151 Quiz 12 100 Pts Fall 2013 Name: Due at time of final exam. Provide explanations for your answers. 1. Which one of the following substances is expected to have the lowest melting point? A) BrI B)
More information1) Define the following terms: a) solution, b) miscible, c) hydration, d) percent by mass (solute), e) colligative property, f) hypotonic.
Problems - Chapter 13 (with solutions) 1) Define the following terms: a) solution, b) miscible, c) hydration, d) percent by mass (solute), e) colligative property, f) hypotonic. a) solution - A homogeneous
More informationChem Midterm 3 April 23, 2009
Chem. 101 - Midterm 3 April 3, 009 Name All work must be shown on the exam for partial credit. Points will be taken off for incorrect or no units and for the incorrect number of significant figures. Only
More information- Let's look at how things dissolve into water, since aqueous solutions are quite common. sucrose (table sugar)
68 HOW THINGS DISSOLVE - Let's look at how things dissolve into water, since aqueous solutions are quite common. sucrose (table sugar)... what happens? - Water molecules pull the sugar molecules out of
More information(for tutoring, homework help, or help with online classes)
www.tutor-homework.com (for tutoring, homework help, or help with online classes) 1. Elemental iodine (I 2 ) is a solid at room temperature. What is the major attractive force that exists among different
More informationCHAPTER OUTLINE. I. The Structure of Water: An Introduction to Intermolecular Forces
The Chemistry of Water and the Nature of Liquids Chapter 11 CHAPTER OUTLINE 11.2 I. The Structure of Water: An Introduction to Intermolecular Forces II. A Closer Look at Intermolecular lar Forces A. London
More informationIntermolecular Forces
Intermolecular Forces! When two molecules approach one another, they are attracted to some extent! Polar molecules are attracted through the electrostatic interaction of their dipole moments! Non-polar
More informationAP CHEMISTRY NOTES 15-1 INTERMOLECULAR FORCES
AP CHEMISTRY NOTES 15-1 INTERMOLECULAR FORCES INTERMOLECULAR FORCES In addition to the covalent bonds that exist between atoms in a molecule (H2O for instance), there are also weak attractions between
More informationProperties of Solutions. Chapter 13
Properties of Solutions Chapter 13 Sodium acetate crystals rapidly form when a seed crystal is added to a supersaturated solution of sodium acetate. Saturated solution: contains the maximum amount of a
More information1 Which of the following compounds has the lowest solubility in water? (4 pts)
version: 516 Exam 1 - Sparks This MC portion of the exam should have 19 questions. The point values are given with each question. Bubble in your answer choices on the bubblehseet provided. Your score is
More informationa) 1.3 x 10 3 atm b) 2.44 atm c) 8.35 atm d) 4.21 x 10-3 atm e) 86.5 atm
1. (6 pts) A sample of gas with a volume of 750 ml exerts a pressure of 756 mm Hg at 30.0 0 C. What pressure (atm) will the sample exert when it is compressed to 250 ml and cooled to -25.0 0 C? a) 1.3
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 informationMultiple Choice. Multiple Choice
1. At what temperature in degree Celcius is the value in degree Fahrenheit twice of that in degree Celcius? A) 160 o C B) -24.6 o C C) 6.4 o C D) 22.2 o C E) 32 o C 2. The correct name for NaOCl is, A)
More information- Let's look at how things dissolve into water, since aqueous solutions are quite common. sucrose (table sugar)
68 HOW THINGS DISSOLVE - Let's look at how things dissolve into water, since aqueous solutions are quite common. sucrose (table sugar)... what happens? - Water molecules pull the sugar molecules out of
More informationCHEMISTRY 110 EXAM 3 April 2, 2012 FORM A 1. Which plot depicts the correct relationship between the volume and number of moles of an ideal gas at constant pressure and temperature? 2. The height of the
More informationPhysical Properties of Solutions
Physical Properties of Solutions Physical Properties of Solutions Types of Solutions (13.1) A Molecular View of the Solution Process (13.2) Concentration Units (13.3) Effect of Temperature on Solubility
More informationChapter 12.4 Colligative Properties of Solutions Objectives List and define the colligative properties of solutions. Relate the values of colligative
Chapter 12.4 Colligative Properties of Solutions Objectives List and define the colligative properties of solutions. Relate the values of colligative properties to the concentrations of solutions. Calculate
More informationMolality. Molality (m) is the number of moles of solute per kilogram of solvent. mol of solute kg solvent. Molality ( m) =
Molality Molality (m) is the number of moles of solute per kilogram of solvent. Molality ( m) = mol of solute kg solvent Sample Problem Calculate the molality of a solution of 13.5g of KF dissolved in
More informationBushra Javed Valencia College CHM 1046 Chapter 12 - Solutions
Bushra Javed Valencia College CHM 1046 Chapter 12 - Solutions 1 Chapter 12 :Solutions Tentative Outline 1. Introduction to solutions. 2. Types of Solutions 3. Solubility and the Solution Process: Saturated,
More informationFind molality: mass percent. molality Assume a basis of 100g solution, then find moles ammonium chloride: Find mass water: So molality is:
66 An aqueous solution is 8.50% ammonium chloride by mass. The density of the solution is 1.024 g/ml Find: molality, mole fraction, molarity. Find molality: mass percent molality Assume a basis of 100g
More informationCh. 14/15 Prep-Test. Multiple Choice Identify the choice that best completes the statement or answers the question.
Ch. 14/15 Prep-Test Multiple Choice Identify the choice that best completes the statement or answers the question. 1. The intermolecular forces between particles in a liquid can involve all of the following
More informationChapter 12. Properties of Solutions
Chapter 12. Properties of Solutions What we will learn: Types of solutions Solution process Interactions in solution Types of concentration Concentration units Solubility and temperature Solubility and
More informationSolutions: Multiple Choice Review PSI AP Chemistry. 1. Which of the following would be FALSE regarding mixtures?
Solutions: Multiple Choice Review PSI AP Chemistry Name Part A: Mixtures, Solubility, and Concentration 1. Which of the following would be FALSE regarding mixtures? (A) Mixtures do not obey the law of
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 informationx =!b ± b2! 4ac 2a moles particles solution (expt) moles solute dissolved (calculated conc ) i =
Properties of Solution Practice Exam Solutions Name (last) (First) Read all questions before you start. Show all work and explain your answers. Report all numerical answers to the proper number of sig.
More informationChem 1046 February 27, 2001 Test #2
Chem 1046 February 27, 2001 Test #2 1. A sample of octane in equilibrium with its vapor in a closed 1.0-L container has a vapor pressure of 50.0 torr at 45 C. The container s volume is decreased to 0.50
More informationCH 222 Chapter Eleven Concept Guide
CH 222 Chapter Eleven Concept Guide 1. Molality A 4.5 M nitric acid solution contains 65.0 g of HNO 3 in 288 g of solution. What is the molality of this solution? Molality is calculated by dividing the
More informationCHEMISTRY LTF DIAGNOSTIC TEST STATES OF MATTER TEST CODE:
Chemsitry States of Matter Multiple Choice 017074 CHEMISTRY LTF DIAGNOSTIC TEST STATES OF MATTER TEST CODE: 017074 Directions: Each group of questions below consists of five lettered answers followed by
More informationStates of Matter Chapter 10 Assignment & Problem Set
States of Matter Name Warm-Ups (Show your work for credit) Date 1. Date 2. Date 3. Date 4. Date 5. Date 6. Date 7. Date 8. States of Matter 2 Study Guide: Things You Must Know Vocabulary (know the definition
More informationChapter 13 Properties of Solutions
Section 13.1 The Solution Process Chapter 13 Properties of Solutions SOLVENT - any substance that has other substances dissolved in it (often a liquid) ie. The dissolving medium - often the substance present
More informationName AP CHEM / / Chapter 11 Outline Properties of Solutions
Name AP CHEM / / Chapter 11 Outline Properties of Solutions Solution Composition Because a mixture, unlike a chemical compound, has a variable composition, the relative amounts of substances in a solution
More informationOFB Chapter 6 Condensed Phases and Phase Transitions
OFB Chapter 6 Condensed Phases and Phase Transitions 6-1 Intermolecular Forces: Why Condensed Phases Exist 6- The Kinetic Theory of Liquids and Solids 6-3 Phase Equilibrium 6-4 Phase Transitions 6-5 Phase
More informationPhysical Properties of Solutions
Physical Properties of Solutions Chapter 12 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 12.1- Types of solutions A solution is a homogenous mixture of 2 or
More informationCHEMISTRY - UTEXAS 1E CH.7 - PHYSICAL EQUILIBRIA.
!! www.clutchprep.com CONCEPT: PHASE DIAGRAMS Under appropriate conditions of pressure and temperature, most substances can exist in 3 states of matter:, and. Microscopic Explanation for the Behavior of
More informationUpon successful completion of this unit, the students should be able to:
Unit 9. Liquids and Solids - ANSWERS Upon successful completion of this unit, the students should be able to: 9.1 List the various intermolecular attractions in liquids and solids (dipole-dipole, London
More informationDO NOT OPEN THE EXAMINATION PAPER UNTIL YOU ARE TOLD BY THE SUPERVISOR TO BEGIN CHEMISTRY 2202 SAMPLE FINAL EXAMINATION.
Name: Teacher: DO NOT OPEN TE EXAMINATION PAPER UNTIL YOU ARE TOLD BY TE SUPERVISOR TO BEGIN EMISTRY 2202 SAMPLE FINAL EXAMINATION Value: 100% General Instructions This examination consists of two parts.
More information1. Which molecule will have the strongest intermolecular forces? _D. 2. Which molecule will have the weakest intermolecular forces?
Use the following information to answer questions 1-5: 1. Which molecule will have the strongest intermolecular forces? _D 2. Which molecule will have the weakest intermolecular forces? _C 3. What is the
More informationChapter 13. Properties of Solutions
Chapter 13 Properties of Solutions Warm - Up Why doesn t salt dissolve in nonpolar solvents such as hexane? How does the orientation of water around Na + differ from the orientation of water around Cl
More information2. Which of the following liquids would have the highest viscosity at 25 C? A) CH 3 OCH 3 B) CH 2 Cl 2 C) C 2 H 5 OH D) CH 3 Br E) HOCH 2 CH 2 OH
CHEF124 Mid Term Revision (Trimester 3, 2012/13) 1. Identify the dominant (strongest) type of intermolecular force present in (a) RbCl(s) ionic (b) NH 3 (l) - hydrogen bonding (c) Cl 2 (l) dispersion (d)
More informationWater & Solutions Chapter 17 & 18 Assignment & Problem Set
Water & Solutions Chapter 17 & 18 Assignment & Problem Set Name Warm-Ups (Show your work for credit) Date 1. Date 2. Date 3. Date 4. Date 5. Date 6. Date 7. Date 8. Water & Solutions 2 Vocabulary (know
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 information1. Increasing the pressure above a liquid will cause the boiling point of the liquid to:
JASPERSE CHEM 210 PRACTICE TEST 1 VERSION 2 Ch. 11 Liquids, Solids, and Materials Ch. 10 Gases Ch. 15 The Chemistry of Solutes and Solutions Ch. 13 Chemical Kinetics 1 Constants and/or Formulas Formulas
More informationSolutions. Solutions. How Does a Solution Form? Solutions. Energy Changes in Solution. How Does a Solution Form
Ummm Solutions Solutions Solutions are homogeneous mixtures of two or more pure substances. In a solution, the solute is dispersed uniformly throughout the solvent. Solutions The intermolecular forces
More informationName Practice IMFs and VP
Name Practice IMFs and VP Date 5916. Which formula represents a nonpolar molecule containing polar covalent bonds? A) NH3 B) H2 C) CCl4 D) H2O 408. In substances that sublime, the forces of attraction
More information11) What thermodynamic pressure encourages solution formation of two nonpolar substances?
AP Chemistry Test (Chapter 11) Class Set Multiple Choice (54%) Please use the following choices to answer questions 1-10. A) London dispersion forces (temporary dipole attractions) B) Ion-ion attractions
More informationCHEMISTRY 110 EXAM 3 NOVEMER 12, 2012 FORM A
CHEMISTRY 110 EXAM 3 NOVEMER 12, 2012 FORM A 1. Consider a balloon filled with 5 L of an ideal gas at 20 C. If the temperature of the balloon is increased by 70 C and the external pressure acting on the
More informationLecture outline: Chapter 13
Lecture outline: Chapter 13 Properties of solutions Why solutions form at the molecular l levell Units of solution concentration Colligative properties: effects of solutes on BP, MP, and vapor pressure
More informationCHEMISTRY XL-14A PHYSICAL EQUILIBRIUM. August 13, 2011 Robert Iafe
CHEMISTRY XL-14A PHYSICAL EQUILIBRIUM August 13, 2011 Robert Iafe Chapter Overview 2 Phases and Phase Transitions Solubility Colligative Properties Binary Liquid Mixtures Phases and Phase Transitions 3
More informationCHEMISTRY - MCMURRY 7E CH.12 - SOLUTIONS AND THEIR PROPERTIES.
!! www.clutchprep.com CONCEPT: LATTICE ENERGY APPLICATION Lattice Energy represents the energy released when 1 mole of an ionic crystal is formed from its gaseous ions. Mg 2+ (g) + O 2 (g) MgO (s) ΔH =
More informationcp final review part 2
Name: Class: Date: cp final review part 2 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Standard conditions when working with gases are
More informationGases, Liquids, Solids, and Intermolecular Forces
Chapter 6 Gases, Liquids, Solids, and Intermolecular Forces Solids: The particles of a solid have fixed positions and exhibit motions of vibration. Liquids: The particles of a liquid are free to move within
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 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 informationCHEMISTRY CP Name: Period:
CHEMISTRY CP Name: Period: CHEMISTRY SPRING FINAL REVIEW SHEET NOTE: Below are concepts that we have covered in class throughout the second semester. Questions are organized by chapter/concept to help
More informationCHEM 121b Exam 1 Spring 1999
Name SSN CHEM 121b Exam 1 Spring 1999 This exam consists of 15 multiple choice questions (each worth 2 points), and 5 written problems (points noted below for each). There are a total of 100 possible points.
More informationChapter 11. General Chemistry. Chapter 11/1
Chapter 11 Solutions and Their Properties Professor Sam Sawan General Chemistry 84.122 Chapter 11/1 Solutions Solution: A homogeneous mixture. Solvent: The major component. Solute: A minor component. Copyright
More informationSolutions Definition and Characteristics
Solutions Solutions Definition and Characteristics Homogeneous mixtures of two or more substances Appear to be pure substances Transparency Separation by filtration is not possible Uniform distribution
More informationCHEMISTRY 2202 FINAL EXAMINATION Value: 100% General Instructions
Name: Teacher: DO NOT OPEN THE EXAMINATION PAPER UNTIL YOU ARE TOLD BY THE SUPERVISOR TO BEGIN CHEMISTRY 2202 FINAL EXAMINATION Value: 100% General Instructions This examination consists of two parts.
More information9. The two strands in DNA are held together by. A. dispersion forces B. dipole-dipole forces C. hydrogen bonding D. ion-dipole forces E.
hemistry 400 omework 11, hapter 11 I. Multiple hoice 1. The molecules in a sample of pure liquid dichloromethane, 2 l 2, experience which of the following intermolecular forces? I. dispersion forces II.
More informationCHEM 1412 Practice Exam 1 - Chapters Zumdahl
CHEM 1412 Practice Exam 1 - Chapters 11 13 Zumdahl Some equations and constants: T = Km P = XP = MRT ln[a]t = kt + ln[a]o 1 / [A]t = kt + 1 / [A]o t1/2 = ln(2) / k t1/2 = 1 / k{a]o Kp = Kc(RT) n ln(k1/k2)
More informationSolutions: Formation and Properties
New Jersey Center for Teaching and Learning Slide 1 / 48 Progressive Science Initiative This material is made freely available at www.njctl.org and is intended for the non-commercial use of students and
More informationName CHM 1051 Spring 2018 February 4 EXAMINATION ONE TENTATIVE SOLUTIONS I II III IV V
Name CHM 1051 Spring 2018 February 4 EXAMINATION ONE TENTATIVE SOLUTIONS I II III IV V Total Glance over the entire exam, and then attempt the problems in the order of your choice. Rough point values are
More informationPSI AP Chemistry Solutions Practice Problems
PSI AP Chemistry Solutions Practice Problems Name Solutions: Mixtures, Solubility and Concentration Classwork 1. A student determined that there were 0.032 grams of oxygen gas dissolved in a 200.0 ml sample
More informationKEY. Name. Chem 116 Sample Examination #1
page 1 of 7 KEY Name Last 5 digits of Student Number: XXX X hem 116 Sample Examination #1 This exam consists of seven (7) pages, including this cover page. Be sure your copy is complete before beginning
More information6.01 Solutions. The Chemistry of Matter in Water. Dr. Fred Omega Garces. Chemistry 111, Miramar College. 1 Solutions. January 10
6.01 Solutions The Chemistry of Matter in Water Dr. Fred Omega Garces Chemistry 111, Miramar College 1 Solutions 6.01 Solutions ow water Dissolves Salts 2 Solutions Components of Solution omogeneous systems
More informationCHE 107 Fall 2017 Exam 1
CHE 107 Fall 2017 Exam 1 Your Name: Your ID: Question #: 1 Fill in the blanks with the letter corresponding to the correct term. Use each term only once. Your response for each one should be a single letter.
More informationINTERMOLECULAR FORCES AND COLLIGATIVE PROPERTIES HOMEWORK ANSWERS
INTERMOLECULAR FORCES AND COLLIGATIVE PROPERTIES OMEWORK ANSWERS 1. 12.2 a)-c) intermolecular d) intramolecular 2. 12.5 a), b) intermolecular; c), d) intramolecular. 12.15 No. At 1.1 atm, water boils at
More information2. Match each liquid to its surface tension (in millinewtons per meter, mn*m -1, at 20 C).
1. Using your knowledge of the types of intermolecular forces present in CO 2, CH 3 CN, Ne, and CH 4 gases, assign each gas to its van der Waals a parameter. a ( ) 17.58 3.392 2.253 0.2107 gas 2. Match
More informationSubject : Chemistry Class : XII Chapter-2.Solutions Work Sheet ( WS 2. 1) Topic- 2.1 Henry s & Raoult s Laws
Work Sheet ( WS 2. 1) Topic- 2.1 Henry s & Raoult s Laws Name -. Class/ sec.. Roll No.. A. Fill in the blanks: 1. Solutions are mixtures of two or more than two components. 2. Generally, the component
More informationCHEM-102 EXAM I Name Fall 2004 Section
CHEM-102 EXAM I Name Fall 2004 Section 10 11 12 Version A (Circle one) Instructions: 1. Put your name and section number on both page 1 and the answer key. Do not detach the answer key from the back of
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 information