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Chemistry Fundamentals II Exam 1: Vapor Pressure, Molarity, Forces, and Phase Transitions , Study notes of Chemistry

Information about exam 1 for the chemistry fundamentals ii course, specifically section 0001 of chm 2046. The exam covers topics from kotz ch. 13-14 and consists of 20 multiple choice questions. Students are required to fill out a scantron sheet with their name, student id, subject, date, test form, and exam number. The exam lasts for 45 minutes and includes questions on topics such as vapor pressure, molarity, intermolecular forces, and phase transitions.

Typology: Study notes

Pre 2010

Uploaded on 12/18/2009

ikkunaprincessa
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Chemistry Fundamentals II -- CHM 2046 -- Section 0001
Exam 1
20 September 2005
Content: Kotz Ch. 13-14
This exam consists of 20 multiple choice questions. Select only one answer per
question. Answers must be recorded on the raspberry NCS ScanTron sheet. Fill in
the following information: Name, Subject, Date, Student ID (PID), Test Form "A",
and Exam No. "002". Answer sheets that do not indicate the Test Form will
NOT be graded. You have 45 minutes to complete the exam. ScanTron sheets
will be collected at the end of the allotted exam time. Please remain seated and
quiet upon completing the exam.
Potentially Useful Data
R = 8.3145 J K-1 mol-1
R = 0.08206 L atm K-1 mol-1
0 °C = 273.15 K
Test Form A: 1 of 3
pf3

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Chemistry Fundamentals II -- CHM 2046 -- Section 0001 Exam 1 20 September 2005 Content: Kotz Ch. 13- This exam consists of 20 multiple choice questions. Select only one answer per question. Answers must be recorded on the raspberry NCS ScanTron sheet. Fill in the following information: Name, Subject, Date, Student ID (PID), Test Form "A", and Exam No. "002". Answer sheets that do not indicate the Test Form will NOT be graded. You have 45 minutes to complete the exam. ScanTron sheets will be collected at the end of the allotted exam time. Please remain seated and quiet upon completing the exam. Potentially Useful Data R = 8.3145 J K-1^ mol- R = 0.08206 L atm K-1^ mol- 0 °C = 273.15 K

1. Diethyl ether has an enthalpy of vaporization of 29.0 kJ/mol. The compound has

a vapor pressure of 524 mm Hg at 298 K. At what temperature is the vapor pressure equal to 760 mm Hg? a. 721 K b. 289 K c. 308 K d. 518 K e. 372 K

2. Hydrochloric acid is sold as a concentrated aqueous solution. If the molarity of

commercial HCl is 12.0 and its density is 1.18 g/cm^3 , then the molality of the solution is: a. 10. b. 12.0 (same as the molarity) c. 16. d. 27. e. 32.

3. Which intermolecular forces are present in SO 2 (s)?

  1. London dispersion
  2. hydrogen bonding
  3. dipole-dipole a. 1 only b. 2 only c. 3 only d. 1 and 2 e. 1 and 3

4. Cuprite is a semiconductor. Oxide ions are at

the cube corner and in the cube center. Copper ions are wholly within the unit cell (shown at right). Which gives the correct formula for cuprite? a. Cu 4 O 9 b. CuO 2 c. Cu 2 O d. CuO e. Cannot be determined from data available

5. A line drawn between which two points

describes a phase transition from gas to liquid? a. A to B b. B to C c. E to B d. E to D e. B to A