key3 - CHEM 1212 Test III MULTIPLE CHOICE (3 points each)...

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CHEM 1212 Test III MULTIPLE CHOICE (3 points each) 1) The molar solubility of aluminum hydroxide in a 0.0182 M KOH solution is __________ M. The K sp of aluminum hydroxide (Al(OH) 3 ) is 1.9 x 10 -33 . A) 3.2 x 10 -28 B) 2.9 x 10 -9 C) 3.1 x 10 -12 D) 1.9 x 10 -33 E) 1.2 x 10 -11 2) What is the maximum concentration (in M) of chloride ions in a solution that contains 0.100 M Pb 2+ . The K sp for lead (II) chloride is 1.0 x 10 -4 . A) 0.032 B) 1.0 x 10 -4 C) 0.029 D) 0.058 E) 0.0.0010 3) The K sp for Zn(OH) 2 is 5.0 x 10 -17 . Determine the molar solubility of Zn(OH) 2 in a buffer solution with a pH of 11.50. A) 5.0 x 10 6 B) 1.2 x 10 -12 C) 1.6 x 10 -14 D) 5.0 x 10 -17 E) 5.0 x 10 -12 4) The first law of thermodynamics can be given as ________. A) the entropy of a pure crystalline substance at absolute zero is zero B) E = q + w C) H o rxn = Σ (n H o f (products)) - Σ (m H o f (reactants)) D) for any spontaneous process, the entropy of the universe increases E) S = q rev /T at constant temperature 5) Of the following, only __________ is not a state function. A) E B) H C) S D) q E) T 6) The thermodynamic quantity that expresses the degree of disorder in a system is __________. A) heat flow B) enthalpy C) entropy D) internal energy E) bond energy 7) The second law of thermodynamics can be given as __________. A) S = q rev /T at constant temperature B) E = q + w C) for any spontaneous process, the entropy of the universe increases D) H o rxn = Σ (n H o f (products)) - Σ (m H o f (reactants)) E) the entropy of a pure crystalline substance is zero at absolute zero
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key3 - CHEM 1212 Test III MULTIPLE CHOICE (3 points each)...

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