SampleQuiz1AAnswerKey

SampleQuiz1AAnswerKey - 1 CHM 2046 NAME: Quiz 1A Spring,...

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CHM 2046 Quiz 1A Spring, 2005 NAME: Answer all questions. Be careful to give your final answer with the correct units, if any, and to the correct significant figures. 1. a) (3 points each) Balance the following reactions and write down their mass-action expression, Q c 2 NO(g) + 2 H 2 (g)    N 2 (g) + 2 H 2 O(g) 2 KCl(s) 2 K(g) + Cl 2 (g) a) (5 points) At 100 ºC, K p = 60.6 for the reaction 2NOBr(g) 2NO(g) + Br 2 (g) In a particular experiment, 0.35 atm (atmospheres) of NOBr, 4.0 atm of NO, and 2.0 atm of Br 2 are placed in a vessel. Is the system at equilibrium? Explain. If not, in which direction will it proceed? Explain. 2. a) (4 points) Gaseous ammonia (NH 3 ) was introduced into a sealed container and heated to a certain temperature 2NH 3 (g) N 2 (g) + 3H 2 (g) At equilibrium, [NH 3 ] = 0.0250M, [N 2 ] = 0.124M, and [H 2 ] = 0.322M. Calculate K c for this reaction at this temperature. b)
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This note was uploaded on 01/15/2012 for the course CHM 2046 taught by Professor Veige/martin during the Spring '07 term at University of Florida.

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SampleQuiz1AAnswerKey - 1 CHM 2046 NAME: Quiz 1A Spring,...

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