Chem 2 chapter 10 and 11 - Exam 1: 1451 : Sample Questions...

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MULTIPLE CHOICE 1) Which cation in each set is expected to have the larger (more negative) hydration energy? I Mg 2+ or Ba 2+ II K + or Al 3+ A) Ba 2+ in set I and Al 3+ in set II B) Mg 2+ in set I and K + in set II C) Ba 2+ in set I and K + in set II D) Mg 2+ in set I and Al 3+ in set II 1) 2) Which of the following molecules is the most polar (has the largest dipole moment)? A) CO 2 ( g ) B) CH 3 F( ) C) KCl( ) D) H 2 ( ) 2) 3) The normal boiling point for ICl is higher than the normal boiling point for Br 2 . This can be explained by A) larger hydrogen-bond forces for ICl. B) larger dispersion forces for ICl. C) larger dispersion forces for Br 2 . D) larger dipole-dipole forces for ICl. 3) 4) Which of the following is most likely to have the highest viscosity at 25°C? A) C 8 H 18 B) C 4 H 10 C) HOCH 2 CH 2 OH D) C 2 H 5 NH 2 4) 5) Which of the intermolecular forces is the most important contributor to the high surface tension shown by water? A) ion-dipole forces B) dispersion forces C) hydrogen bonding D) dipole-dipole forces 5) 6) The magnitude (largeness or smallness) of the heats of vaporization, fusion and sublimation of a substance reflect the A) density of the substance. B) strength of the intermolecular forces of the substance. C) strength of the covalent bonds between atoms in each molecule of the substance.
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This note was uploaded on 04/10/2008 for the course CHEM 1451 taught by Professor Krause during the Spring '08 term at University of Central Arkansas.

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Chem 2 chapter 10 and 11 - Exam 1: 1451 : Sample Questions...

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