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A chemistry test for the fall of 2006, including multiple-choice questions on topics such as van't hoff factor, molality, vapor pressure, osmotic pressure, freezing point depression, boiling point elevation, intermolecular forces, and phase diagrams. It also includes an answer sheet for the test.
Typology: Exams
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Circle the correct answer on the answer sheet.
H
v RT
−⎛^ Δ ⎞ ⎜⎝ ⎟⎠
1 2 1 2
R = 8.314 J mol –1^ K–1^ R = 0.08206 L atm mol –1^ K–
If the a compound does not ionize in solution, the “effective approximate” van’t Hoff factor is 1.
Temperature in EC versus Water Vapor Pressure in torr 0 EC 4.6 torr 10 EC 9.2 torr 20 EC 17.5 torr 30 EC 31.8 torr 40 EC 55.3 torr 1 EC 4.9 torr 11 EC 9.8 torr 21 EC 18.7 torr 31 EC 33.7 torr 41 EC 58.3 torr 2 EC 5.3 torr 12 EC 10.5 torr 22 EC 19.8 torr 32 EC 35.7 torr 42 EC 61.5 torr 3 EC 5.7 torr 13 EC 11.2 torr 23 EC 21.1 torr 33 EC 37.7 torr 43 EC 64.8 torr 4 EC 6.1 torr 14 EC 12.0 torr 24 EC 22.4 torr 34 EC 39.9 torr 44 EC 68.3 torr 5 EC 6.5 torr 15 EC 12.8 torr 25 EC 23.8 torr 35 EC 42.2 torr 45 EC 71.9 torr 6 EC 7.0 torr 16 EC 13.6 torr 26 EC 25.2 torr 36 EC 44.6 torr 46 EC 75.7 torr 7 EC 7.5 torr 17 EC 14.5 torr 27 EC 26.7 torr 37 EC 47.1 torr 47 EC 79.6 torr 8 EC 8.0 torr 18 EC 15.5 torr 28 EC 28.3 torr 38 EC 49.7 torr 48 EC 83.7 torr 9 EC 8.6 torr 19 EC 16.5 torr 29 EC 30.0 torr 39 EC 52.4 torr 49 EC 88.0 torr
a. 1 b. 2 c. 3 d. 4 e. 5
a. 1.28 mol kg–1^ b. 0.782 mol kg–1^ c. 2.56 mol kg–1^ d. 0.125 mol kg–1^ e. 0.391 mol kg–
a. 0.200 mol kg–1^ b. 2.50 mol kg–1^ c.1.60 mol kg–1^ d. 0.800 mol kg–1^ e. 0.400 mol kg–
a. 0.962 torr b. 731 torr c. 49.8 torr d. 53.2 torr e. 2.10 torr
a. 24.4 atm b. 48.9 atm c. 73.4 atm d. 2478 atm e. 7433 atm
a. 11.2 K b. 2.79 K c. 5.58 K d. 0.48 K e. 0.60 K
a. CH 4 b. PF 5 c. SO 3 d. SO 2 e. CO 2
a. H 2 O b. H 3 CNH 2 c. H 3 COCH 3 d. HF e. CH 3 COOH
a. CH 3 F b. KCl c. HCl d. SF 6 e. H 2 O
a. 3.0 g mol –1^ b. 84.0 g mol –1^ c. 60.0 g mol –1^ d. 0.0313 g mol –1^ e. 32.0 g mol –
a. ionic solid b. covalent solid c. metallic solid d. molecular solid e. London solid
a. ionic-ionic attractions b. London forces c. covalent forces d. dipole-dipole attractions e. hydrogen bonding
a. Xe < Ne < Ar < Kr < He b. He < Ne < Ar < Kr < Xe c. Ar < He < Ne < Kr < Xe d. He < Kr < Ar < Ne < Xe e. He < Ne < Ar < Kr < Xe
a. 2.60 b. 4.72 c. 3.50 d. 3.15 e. indeterminate
a. 2 b. 1 c. 3 d. 7 e. 9
(Print clearly)
Answer sheet - circle the correct letter for the answer
**1. a. b. c. d. e.