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a2-1 - constant for this reaction is 0.20 at 600 C(a If 0.3...

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Chemistry 2000 Spring 2001 Section B Assignment 2 Due: Thursday, Feb. 15, 10:50 a.m. 1. The liquid compound 1,3-di- t -butylcyclohexane exists in two forms which are known as the “chair” and “boat” conformations: chair boat (Only the carbon skeletons are shown.) At 580 K, there is an equilibrium between these two forms when 6.42% of the molecules are in the chair form. What is the equilibrium constant for the chair boat conversion? [4 marks] 2. The equilibrium constant for the reaction 2NO g Br 2 g 2NOBr g is 116.6 at 25 C. If 0.105 atm of NO, 0.400 atm of bromine and 0.969 of NOBr are mixed, in which direction will the reaction proceed? [4 marks] 3. Phosgene (COCl 2 ) is produced by the reaction CO g Cl 2 g COCl 2 g . The equilibrium
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Unformatted text preview: constant for this reaction is 0.20 at 600 C. (a) If 0.3 atm each of carbon monoxide and of chlorine are mixed in a rigid container at 600 C, what equilibrium partial pressure of phosgene is obtained? [7 marks] (b) If the container in which the reaction occurs has a volume of 10 L, how many moles of phosgene are formed? [4 marks] 4. The equilibrium constant for the reaction CO 2 g H 2 O l H 2 CO 3 aq is 3 36 10 2 at 25 C. The normal atmospheric pressure of carbon dioxide is 33 Pa. A solution is made by dissolving 18 g of NaCl in 150 g of water. Assuming that no solvent evaporates, what is the concentration of H 2 CO 3 when this solution comes to equilibrium? [7 marks]...
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