Ch11Review - Exam Name_ MULTIPLE CHOICE. Choose the one...

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Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Based on molecular mass and dipole moment of the five compounds in the table below, which should have the highest boiling point? Substance Molecular Mass (amu) Dipole Moment (D) Propane, CH 3 CH 2 CH 3 44 0.1 Dimethylether, CH 3 OCH 3 46 1.3 Methylchloride, CH 3 Cl 50 1.9 Acetaldehyde, CH 3 CHO 44 2.7 Acetonitrile, CH 3 CN 41 3.9 A) CH 3 CHO B) CH 3 Cl C) CH 3 OCH 3 D) CH 3 CN E) CH 3 CH 2 CH 3 1) 2) Of the following substances, only __________ has London dispersion forces as its only intermolecular force. CH 3 OH NH 3 H 2 S CH 4 HCl A) CH 4 B) CH 3 OH C) H 2 S D) HCl E) NH 3 2) 3) Of the following substances, only __________ has London dispersion forces as the only intermolecular force. CH 3 OH NH 3 H 2 S Kr HCl A) Kr B) H 2 S C) NH 3 D) CH 3 OH E) HCl 3) 4) Which one of the following should have the lowest boiling point? PH 3 H 2 S HCl SiH 4 H 2 O A) H 2 S B) H 2 O C) SiH 4 D) PH 3 E) HCl 4) 1
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5) Of the following substances, __________ has the highest boiling point. H 2 O CO 2 CH 4 Kr NH 3 A) NH 3 B) H 2 O C) CO 2 D) Kr E) CH 4 5) 6) Which of the following has dispersion forces as its only intermolecular force? CH 4 HCl C 6 H 13 NH 2 NaCl CH 3 Cl A) NaCl B) HCl C) CH 3 Cl D) CH 4 E) C 6 H 13 NH 2 6) 7) Of the following, __________ has the highest boiling point. N 2 Br 2 H 2 Cl 2 O 2 A) Br 2 B) O 2 C) H 2 D) Cl 2 E) N 2 7) 8) In which of the following molecules is hydrogen bonding likely to be the most significant component of the total intermolecular forces? CH 4 C 5 H 11 OH C 6 H 13 NH 2 CH 3 OH CO 2 A) C 5 H 11 OH B) C 6 H 13 NH 2 C) CH 4 D) CO 2 E) CH 3 OH 8) 9) The substance with the largest heat of vaporization is __________. I 2 Br 2 Cl 2 F 2 O 2 A) Br 2 B) O 2 C) Cl 2 D) I 2 E) F 2 9) 2
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10) Of the following, __________ is an exothermic process. melting subliming freezing boiling A) melting B) subliming C) boiling D) freezing E) All of the above are exothermic. 10) 11) The heat of fusion of water is 6.01 kJ/mol. The heat capacity of liquid water is 75.3 J/mol · K. The conversion of 50.0 g of ice at 0.00°C to liquid water at 22.0°C requires __________ kJ of heat. A) 17.2 B) 0.469 C) 21.3 D) 3.8 × 10 2 E) Insufficient data are given. 11) 12) The heating curve shown was generated by measuring the heat flow and temperature for a solid as it was heated. The slope of the __________ segment corresponds to the heat capacity of the liquid of the substance. A) AB B) BC C) CD D) DE E) EF 12) 13) Which segment would require the use of delta H of vaporization in the calculation of heat exchange A) EF B) BC C) AB D) CD E) DE 13) 3
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14) The heating curve shown was generated by measuring the heat flow and temperature for a solid as it was heated. The slope of the __________ segment corresponds to the heat capacity of the solid. A) AB
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This note was uploaded on 12/22/2011 for the course CHEM 1411 taught by Professor Bumbia during the Summer '10 term at Richland Community College.

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Ch11Review - Exam Name_ MULTIPLE CHOICE. Choose the one...

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