Q2 Online HW 1

# Q2 Online HW 1 - Question 1 (Name:Arshi Imtiaz) The...

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Question 1 (Name:Arshi Imtiaz) The following hypothetical reaction is carried out in a flask A( g ) + 2B( g ) ↔ 3C( g ) + D( g ) At a constant temperature, 0.989 mol of A and 2.81 mol of B are placed in a 10.0 L container and allowed to react to equilibrium. The equilibrium mixture is found to contain 0.393 moles of D. How many moles of C are in the flask at equilibrium? 2.42 moles 3.99 moles 1.45 moles 0.393 moles 1.18 moles 0.902 moles 1.63 moles Question 2 Write the equilibrium-constant expression, K c , for the following reaction: 4KO 2 ( s ) + 2H 2 O( g ) ↔ 4KOH( s ) + 3O 2 ( g ) Question 3 The hypothetical reaction 3A( g ) + B( g ) <=> 2C( aq ) + D( s ) is run at 25 o C in a container with a volume of 1.47 L available for the gases. After the reaction achieves equilibrium, the amounts (mol) or concentrations are as follows.

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A = 2.39 mol C = 2.78 M B = 3.08 mol D = 2.82 mol What is the equilibrium constant for the reaction at 25 o C? 0.802 1.11 2.42 1.07 0.184 0.858 Question 4 At a certain temperature, 0.347 mol of PCl 3 ( g ) and 8.48 x 10 -3 mole of PCl 5 ( g ) are placed into a 0.669 L flask. PCl 5 ( g ) is known to dissociate according to the following reaction: PCl 5 ( g ) ↔ PCl
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## This note was uploaded on 04/09/2008 for the course CHEM 126 taught by Professor Bussell during the Winter '07 term at Western Washington.

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Q2 Online HW 1 - Question 1 (Name:Arshi Imtiaz) The...

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