PX-III Chem 1411 Chaps 11 & 12 Ebbing
|
|
- Augustine Sims
- 6 years ago
- Views:
Transcription
1 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 processes is exothermic? A) sublimation B) vaporization C) melting D) fusion E) deposition 3. The process represented by the equation C 10 H 8 (s) C 10 H 8 (g) is A) fusion. B) melting. C) sublimation. D) liquefaction. E) condensation. 4. The normal boiling point of a liquid is A) the only temperature at which there can be equilibrium between the liquid and gas states. B) the temperature above which the substance cannot exist as a liquid regardless of the pressure. C) the temperature at which the amounts of liquid and gas are equal. D) the temperature at which the vapor pressure equals atmospheric pressure. E) the temperature at which all three phases are in equilibrium. 5. The enthalpy of fusion of sulfur (S atoms) is 17.7 kj/mol. How many grams of sulfur can be melted by 22.5 kj of energy? A) 9.8 g B) 19.5 g C) 26.2 g D) 40.7 g E) 52.5 g Page 1
2 6. How much heat is released at constant pressure if a 15.0-L tank containing 80.0 atm of hydrogen sulfide gas condenses at its boiling point of o C? The enthalpy of vaporization of hydrogen sulfide is 18.7 kj/mol at o C. (R = L atm/(k mol)) A) J B) J C) J D) J E) J 7. The vapor pressure of a given liquid will increase if A) the liquid is moved to a container in which its surface is very much larger. B) the volume of the liquid is increased. C) the volume of the vapor phase is increased. D) the temperature is increased. E) a more volatile liquid is added to the given liquid. 8. A liquid has an enthalpy of vaporization of 30.3 kj/mol. At 272 K it has a vapor pressure of 103 mmhg. What is the normal boiling point of this liquid? (R = 8.31 J/(K mol)) A) 272 K B) 320 K C) 291 K D) 237 K E) 255 K 9. Knowing that H vap for water is 40.7 kj/mol, calculate P vap of water at 37 C. A) 6.90 torr B) 12.4 torr C) 18.7 torr D) 25.4 torr E) 52.6 torr Page 2
3 10. Choose the correct statement about the diagram below. A) The diagram is qualitatively correct for water. B) The diagram shows that the melting point of the solid increases with increasing pressure. C) The diagram shows the triple point above 1 atm pressure. D) The diagram could represent the phase diagram of CO 2. E) None of the above statements is correct. 11. From a consideration of the phase diagram below, a change from point M to point N corresponds to A) sublimation. B) condensation. C) evaporation. D) freezing. E) liquefaction. 12. The measure of the resistance to flow of a liquid is A) van der Waals forces. B) vapor pressure. C) London forces. D) surface tension. E) viscosity. Page 3
4 13. The solubility of 1-pentanol in water is 2.7 g per 100 g of water at 25 C. What is the maximum amount of 1-pentanol that will dissolve in 2.5 g of water at 25 C? A) 2.7 g B) 6.8 g C) g D) 1.1 g E) g 14. The solubility of O 2 in water is g/l at an oxygen pressure of around 15.3 atm. What is the Henry's law constant for O 2 (in units of L atm/mol)? A) B) C) D) E) None of the above are within 5% of the correct answer. 15. Which of the following is not a colligative property? A) osmotic pressure B) vapor pressure lowering C) freezing-point depression D) lattice energy E) boiling-point elevation 16. As the number of solute particles in a given volume of solution increases, A) the freezing point will increase and the vapor pressure will increase. B) the freezing point will decrease and the vapor pressure will decrease. C) the boiling point will increase and the vapor pressure will increase. D) the boiling point will decrease and the vapor pressure will decrease. E) the osmotic pressure will decrease and the lattice energy will increase. 17. What mass of 20.0% potassium chloride solution contains 80.0 g of water? A) 20.0 g B) 40.0 g C) 60.0 g D) 80.0 g E) g Page 4
5 18. What is the mass percent of an aqueous sodium hydroxide solution in which the mole fraction of NaOH is 0.311? The density of the solution is g/ml. A) 68.9% B) 47.5% C) 8.12% D) 50.0% E) 4.92% 19. The molality of a solution is defined as A) moles of solute per liter of solution. B) grams of solute per liter of solution. C) moles of solute per kilogram of solution. D) moles of solute per kilogram of solvent. E) the gram molecular weight of solute per kilogram of solvent. 20. The molarity of a solution is the A) moles of solute per liter of solvent. B) moles of solute per kilogram of solution. C) moles of solute per liter of solution. D) moles of solute per kilogram of solvent. E) moles of solute per mole of solution. 21. If 11.7 g of naphthalene, C 10 H 8, is dissolved in g of chloroform, CHCl 3, what is the molality of the solution? A) m B) m C) m D) 11.9 m E) m 22. What is the mole fraction of urea, CH 4 N 2 O, in an aqueous solution that is 46% urea by mass? A) 0.20 B) 0.80 C) 0.45 D) 0.74 E) 0.46 Page 5
6 23. What is the vapor pressure at 20 C of an ideal solution prepared by the addition of 5.64 g of the nonvolatile solute urea, CO(NH 2 ) 2, to 22.1 g of methanol, CH 3 OH? The vapor pressure of pure methanol at 20 C is 89.0 mmhg. A) 10.7 mmhg B) 70.9 mmhg C) 60.2 mmhg D) 28.8 mmhg E) 78.3 mmhg 24. What is the freezing point of a 0.21 m solution of glucose, C 6 H 12 O 6, in water? (K f for water is C/m.) A) 0.39 C B) 0.20 C C) 0.20 C D) 0.39 C E) 0.78 C 25. When a 41.4-g sample of an unknown compound is dissolved in 500. g of benzene, the freezing point of the resulting solution is 3.77 C. The freezing point of pure benzene is 5.48 C, and K f for benzene is 5.12 C/m. Calculate the molar mass of the unknown compound. A) g/mol B) 24.2 g/mol C) 212 g/mol D) 496 g/mol E) 248. g/mol 26. A red blood cell placed in pure water will swell because A) the osmotic pressure is greater in the water than in the cell. B) the osmotic pressure is greater in the cell than in the water. C) the osmotic pressure is the same in the cell and the water. D) water moves from a higher osmotic pressure to a lower osmotic pressure. E) the vapor pressure of the water in the cell is greater than the vapor pressure of pure water. Page 6
7 27. Determine the osmotic pressure of a solution that contains g of a hydrocarbon solute (molar mass = 340 g/mol) dissolved in benzene to make a 350-mL solution. The temperature is 20.0 C. A) 0.37 torr B) 1.8 torr C) 2.4 torr D) 5.4 torr E) 5.0 torr 28. A 2.8-g sample of a small protein having a molecular weight of 42,000 g/mol is dissolved in 45.6 ml of water at 25 C. What is the osmotic pressure of the solution? (R = L atm/(k mol)) A) mmhg B) 2.3 mmhg C) 27 mmhg D) mmhg E) 1100 mmhg 29. Osmotic pressure is A) inversely proportional to mole fraction. B) inversely proportional to mass fraction. C) inversely proportional to molality. D) directly proportional to molarity. E) directly proportional to lattice energy. 30. Calculate the molecular weight of a small protein if a 0.24-g sample dissolved in 196 ml of water has an osmotic pressure of 9.8 mmhg at 23 C. (R = L atm/(k mol)) A) g/mol B) g/mol C) g/mol D) g/mol E) 3.0 g/mol Page 7
8 Answer Key 1. C 2. E 3. C 4. D 5. D 6. A 7. D 8. B 9. E 10. B 11. D 12. E 13. C 14. C 15. D 16. B 17. E 18. D 19. D 20. C 21. C 22. A 23. E 24. D 25. E 26. B 27. D 28. C 29. D 30. B Page 8
A) 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 informationDATA THAT YOU MAY USE UNITS Conventional Volume ml or cm 3 = cm 3 or 10-3 dm 3 Liter (L) = dm 3 Pressure atm = 760 torr = Pa CONSTANTS
DATA THAT YOU MAY USE UNITS Conventional S.I. Volume ml or cm 3 = cm 3 or 0-3 dm 3 Liter (L) = dm 3 Pressure atm = 760 torr =.03 0 5 Pa torr = 33.3 Pa Temperature C 0 C = 73.5 K PV L-atm =.03 0 5 dm 3
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 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 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 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 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 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 information(for tutoring, homework help, or help with online classes)
www.tutor-homework.com (for tutoring, homework help, or help with online classes) 1. If heat is added to ice and liquid water in a closed container and, after the addition of the heat, ice and liquid water
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 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 informationPractice test Chapter 12 and 13
Practice test Chapter 12 and 13 1. Which of the following pure liquids is the best solvent for carbon disulfide? A) C6H6(l) B) NH3(l) C) CH3OH(l) D) H2O(l) E) HBr(l) 2. How does the solubility of a gas
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 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 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 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 informationCHEM 1032 PRACTICE EXAM I CLASS SPRING 2017
1 CHEM 1032 PRACTICE EXAM I CLASS SPRING 2017 1. Select the characteristic(s) of the liquid phase: (You may need a periodic table. Useful information appears on page 5.) (i) adopts the shape of the container
More informationPHASE CHEMISTRY AND COLLIGATIVE PROPERTIES
PHASE CHEMISTRY AND COLLIGATIVE PROPERTIES Phase Diagrams Solutions Solution Concentrations Colligative Properties Brown et al., Chapter 10, 385 394, Chapter 11, 423-437 CHEM120 Lecture Series Two : 2013/01
More informationChapter 11. Properties of Solutions
Chapter 11 Properties of Solutions Section 11.1 Solution Composition Various Types of Solutions Copyright Cengage Learning. All rights reserved 2 Section 11.1 Solution Composition Solution Composition
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 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 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 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 informationAP CHEMISTRY CHAPTER 8 PROBLEM SET #2. (Questions 1-3) Select the letter of the answer that best completes the statement or answers the question.
NAME: AP CHEMISTRY CHAPTER 8 PROBLEM SET #2 (Questions 1-3) Select the letter of the answer that best completes the statement or answers the question. 1. 2. 3. According to Raoult s Law, which statement
More informationRank the following in order from lowest to highest boiling point. Lowest 1 < 2 < 3 < 4 Highest. Which sketch shows the strongest hydrogen bond?
Posting ID: 453368 Course: CHE_107_General_Ch emistry_2 Instructor: Blue Course Name: CHE_107_General_Chemistry_2 Question #: 1 Fill in one of the three common phases of matter for each one of these descriptions.
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 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 information2011, Robert Ayton. All rights reserved.
Solutions Outline 1. Solubility 2. Concentration Calculations 3. Colligative Properties 4. Freezing Point Depression or Boiling Point Elevation Problems 5. Graphs of Colligative Properties Review 1. Solubility
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 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 informationMCGILL UNIVERSITY FACULTY OF SCIENCE MIDTERM EXAMINATION CHEM 120 MONDAY MARCH 16, :30PM 8:30PM VERSION NUMBER: 1
MCGILL UNIVERSITY FACULTY OF SCIENCE MIDTERM EXAMINATION CHEM 120 MONDAY MARCH 16, 2009 6:30PM 8:30PM VERSION NUMBER: 1 Instructions: BEFORE YOU BEGIN: Enter your student number and name on the computer
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 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 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 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 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 informationChemistry 145 Exam number 2 name 10/8/98 # A.(64) Circle the best response. Record answers on the attached answer sheet.
Chemistry 145 Exam number 2 name 10/8/98 # A.(64) Circle the best response. Record answers on the attached answer sheet. 1. Which is NOT a unit for expressing pressure? a) Pascal b) lb/cm 3 c) torr d)
More informationAP Chemistry--Chapter 11: Properties of Solutions
AP Chemistry--Chapter 11: Properties of Solutions I. Solution Composition (ways of expressing concentration) 1. Qualitatively, use dilute or concentrated to describe 2. Quantitatively a. Mass Percentage
More informationCHE 107 Exam 1 Fall 2016
CHE 107 Exam 1 Fall 2016 Your Name: Your ID: Question #: 1 Molecular View State Density Shape Volume Strength of Intermole cular Forces solid high definite definite 1 [stron g, weak] liquid 2 [high, indefinite
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 informationMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Chapter 13 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The process of solute particles being surrounded by solvent particles is known as. A)
More informationHomework 01. Phase Changes and Solutions
HW01 - Phase Changes and Solu!ons! This is a preview of the published version of the quiz Started: Jan 16 at 1:pm Quiz Instruc!ons Homework 01 Phase Changes and Solutions Question 1 Given that you have
More informationALE 24. Colligative Properties (Part 2)
Name Chem 162, Section: Group Number: ALE 24. Colligative Properties (Part 2) (Reference: 13.6 Silberberg 5 th edition) Why is calcium chloride spread on highways in the North during the Winter? The Model:
More informationStudyHub: AP Chemistry
StudyHub+ 1 StudyHub: AP Chemistry Solution Composition and Energies, Boiling Point, Freezing Point, and Vapor Pressure StudyHub+ 2 Solution Composition: Mole Fraction: Formula: Mole Fraction of Component
More informationCHEM Exam 2 March 3, 2016
CHEM 123 - Exam 2 March 3, 2016 Constants and Conversion Factors R = 0.082 L-atm/mol-K R = 8.31 J/mol-K 1 atm. = 760 torr Molar Masses: C6H12O6-180. C12H22O11-32. C2H6O - 6. H2O - 18. Al(NO3)3-213. NaOH
More informationChapter 11 Solutions and Colloids 645
Chapter 11 Solutions and Colloids 645 11.5 Colloids Colloids are mixtures in which one or more substances are dispersed as relatively large solid particles or liquid droplets throughout a solid, liquid,
More informationBig Idea Three Topics
Big Idea Three Topics 1. Molecular, Ionic, Net Ionic Equations 2. Stoichiometry 3. Synthesis, Decomposition Reactions 6. Chemical Change Evidence 7. Endothermic & Exothermic Reactions 8. Electrochemistry
More informationName Date Class SECTION 16.1 PROPERTIES OF SOLUTIONS
SOLUTIONS Practice Problems In your notebook, solve the following problems. SECTION 16.1 PROPERTIES OF SOLUTIONS 1. The solubility of CO 2 in water at 1.22 atm is 0.54 g/l. What is the solubility of carbon
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 informationFACULTY OF SCIENCE MID-TERM EXAMINATION 2 MARCH 18, :30 TO 8:30 PM CHEMISTRY 120 GENERAL CHEMISTRY
FACULTY OF SCIENCE MID-TERM EXAMINATION 2 MARCH 18, 2011. 6:30 TO 8:30 PM CHEMISTRY 120 GENERAL CHEMISTRY Examiners: Prof. B. Siwick Prof. A. Mittermaier Dr. A. Fenster Name: Associate Examiner: A. Fenster
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 informationCHEMISTRY 102 FALL 2010 EXAM 1 FORM C SECTION 502 DR. KEENEY-KENNICUTT PART 1
NAME CHEMISTRY 102 FALL 2010 EXAM 1 FORM C SECTION 502 DR. KEENEY-KENNICUTT Directions: (1) Put your name on PART 1 and your name and signature on PART 2 of the exam where indicated. (2) Sign the Aggie
More informationChapter 11: Properties of Solutions
Chapter 11: Properties of Solutions Apr 1 11:01 AM 11.1 Solution Composition Solve problems relating to the mass percent, mole fraction and molality. Mar 26 1:09 PM 1 Molarity (M) is defined as moles of
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 informationANSWERS CIRCLE CORRECT SECTION
CHEMISTRY 162 - EXAM I June 08, 2009 Name: SIGN: RU ID Number Choose the one best answer for each question and write the letter preceding it in the appropriate space on this answer sheet. Only the answer
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 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 informationChapter 17: Phenomena
Chapter 17: Phenomena Phenomena: Different masses of solute were added to 1 kg of either H 2 O or C 6 H 6. The boiling and freezing points of the solutions were then measured. Examine the data to determine
More information64 previous solution
64 previous solution mole fraction (definition) 1 - Convert 29.6 grams sodium sulfate to moles. We already did this to find molality, so we can re-use the number. 2 - This is the total moles of both sodium
More informationChapter 11. Properties of Solutions. Copyright 2017 Cengage Learning. All Rights Reserved.
Chapter 11 Properties of Solutions Chapter 11 Table of Contents (11.1) (11.2) (11.3) (11.4) (11.5) (11.6) (11.7) (11.8) Solution composition The energies of solution formation Factors affecting solubility
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 informationUnit 7. Solution Concentrations and Colligative Properties
Unit 7 Solution Concentrations and Colligative Properties Molarity Most widely used concentration unit [HCl] means concentration of HCl in mol/l Notice volume is total volume of solution Molarity (M)=
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 informationFORMULA SHEET (tear off)
FORMULA SHEET (tear off) N A = 6.022 x 10 23 C = ( 5 / 9 ) ( F - 32) F = ( 9 / 5 )( C) + 32 1 amu = 1.661 x 10-27 kg C = K - 273.15 K = C + 273.15 1 atm = 760 torr = 760 mm Hg 1 atm = 1.013 bar pv = nrt
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 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 informationExam Review. Chapters
Exam Review Chapters 13 14.2 Chapter 13 Solutions Concepts of: Solution definitions and representations on the macroscopic and particle level Intermolecular forces Concentration units Solubility and temperature
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 informationGeneral Chemistry by Ebbing and Gammon, 9th Edition George W.J. Kenney, Jr, Professor of Chemistry Last Update: 15-May-2009
Chem 1046 General Chemistry by Ebbing and Gammon, 9th Edition George W.J. Kenney, Jr, Professor of Chemistry Last Update: 15-May-2009 Chapter 12 SOLUTIONS These Notes are to SUPPLIMENT the Text, They do
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 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 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 information= = 10.1 mol. Molar Enthalpies of Vaporization (at Boiling Point) Molar Enthalpy of Vaporization (kj/mol)
Ch 11 (Sections 11.1 11.5) Liquid Phase Volume and Density - Liquid and solid are condensed phases and their volumes are not simple to calculate. - This is different from gases, which have volumes that
More informationChemistry 201: General Chemistry II - Lecture
Chemistry 201: General Chemistry II - Lecture Dr. Namphol Sinkaset Chapter 14 Study Guide Concepts 1. Solutions are homogeneous mixtures of two or more substances. 2. solute: substance present in smaller
More informationBorn-Haber Cycle: ΔH hydration
Born-Haber Cycle: ΔH hydration ΔH solution,nacl = ΔH hydration,nacl(aq) U NaCl ΔH hydration,nacl(aq) = ΔH hydration,na + (g) + ΔH hydration,cl (g) Enthalpies of Hydration 1 Sample Exercise 11.3 Use the
More informationSOLUTION CONCENTRATIONS
SOLUTION CONCENTRATIONS The amount of solute in a solution (concentration) is an important property of the solution. A dilute solution contains small quantities of solute relative to the solvent, while
More informationChemistry 12 Dr. Kline 7 December 2005 Name
Test 4 first letter of last name Chemistry 12 Dr. Kline 7 December 2005 Name This test consists of a combination of multiple choice and other questions. There should be a total of 22 questions on eight
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 informationChapter 10: CHM 2045 (Dr. Capps)
Phase Diagram Phase diagrams for CO 2 and H 2 O Chapter 13. Solutions and Their Physical Properties Shows pressures and temperatures at which gaseous, liquid, and solid phases can exist. Allows us to predict
More information70 Example: If a solution is m citric acid, what is the molar concentration (M) of the solution? The density of the solution is 1.
70 Example: If a solution is 0.688 m citric acid, what is the molar concentration (M) of the solution? The density of the solution is 1.049 g/ml molality definition molarity definition To solve the problem,
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 informationChapter 14. Physical Properties of Solutions. Concentration Units. Example: 1. Show that for dilute solutions, 1ppm is approximately equal to 1mg/L
Chapter 14 Physical Properties of Solutions alloy Concentration Units Molarity (M) = moles solute / Liters of solution Percent by Mass (weight) 1. Show that for dilute solutions, 1ppm is approximately
More information(B) Which of the following in each pair will be more soluble in water?
CHM 112 Chapter 11 Solutions: Study Guide Purpose: This is a guide for your as you work through the chapter. The major topics are provided so that you can write notes on each topic and work the corresponding
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 informationChapter 11. Liquids and Intermolecular Forces
Chapter 11 Liquids and Intermolecular Forces States of Matter The three states of matter are 1) Solid Definite shape Definite volume 2) Liquid Indefinite shape Definite volume 3) Gas Indefinite shape Indefinite
More informationAP CHEMISTRY CHAPTER 8 PROBLEM SET #3. 1. Determine if the following pairs would form a solution. Explain your answer. a.
NAME: AP CHEMISTRY CHAPTER 8 PROBLEM SET #3 1. Determine if the following pairs would form a solution. Explain your answer. a. C 2 H 6 and water b. PbCl 2 and water c. I 2 and water d. F 2 and CH 4 2.
More informationChapter 12 Intermolecular Forces of Attraction
Chapter 12 Intermolecular Forces of Attraction Intermolecular Forces Attractive or Repulsive Forces between molecules. Molecule - - - - - - Molecule Intramolecular Forces bonding forces within the molecule.
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 informationREMEMBER: Bubble in ALL Bubblesheet information!
005 version last name first name signature practiceexam 1 practice MWF Classes Spring 2016 REMEMBER: Bubble in ALL Bubblesheet information! This includes your first and last name, your UTEID, and your
More informationREMEMBER: Bubble in ALL Bubblesheet information!
004 version last name first name signature practiceexam 1 practice MWF Classes Spring 2016 REMEMBER: Bubble in ALL Bubblesheet information! This includes your first and last name, your UTEID, and your
More informationChem 1721 Review Exam 1
Chem 1721 Review Exam 1 Given below are rough outlines of chapters 10 (partial) 12. These are the major concepts with which you should be wellacquainted. As this is just an outline, it is not meant to
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 informationClass XII Chapter 2 Solutions Chemistry
Class XII Chapter 2 Solutions Chemistry Question 2.1: Calculate the mass percentage of benzene (C 6 H 6 ) and carbon tetrachloride (CCl 4 ) if 22 g of benzene is dissolved in 122 g of carbon tetrachloride.
More informationColligative Properties. Vapour pressure Boiling point Freezing point Osmotic pressure
Colligative Properties Vapour pressure Boiling point Freezing point Osmotic pressure Learning objectives Describe meaning of colligative property Use Raoult s law to determine vapor pressure of solutions
More information- Applications: In chemistry, this effect is often used to determine the molecular weight of an unknown molecule.
73 FREEZING POINT DEPRESSION concentration of solute (molality) Freezing point depression constant (for SOLVENT) Freezing point depression: The amount the freezing temperature is LOWERED by the solute.
More informationDATE: POGIL: Colligative Properties Part 1
NAME: AP Chemistry DATE: POGIL: Colligative Properties Part 1 Why? There is a general misconception that adding sodium chloride to cooking water for pasta increases the temperature of the boiling water
More informationChem 112 Exam 1 Version A Spring /16/ :00am/Odago, M. O.
Chem 112 Exam 1 Version A Spring 2011 02/16/2011 10:00am/Odago, M. O. 1. The pressure of a certain gas is measured to be 25.1 mmhg. What is this pressure expressed in units of pascals? (1 atm=1.0125 x10
More informationName: Thermochemistry. Practice Test C. General Chemistry Honors Chemistry
Name: Thermochemistry C Practice Test C General Chemistry Honors Chemistry 1 Objective 1: Use the relationship between mass, specific heat, and temperature change to calculate the heat flow during a chemical
More information