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ch6_ex

# ch6_ex - Example#1(Ex 29 The reaction K= 2.2 is carried out...

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Example #1 (Ex. 29) The reaction, K= 2.2, is carried out in a non- aqueous solvent: CH 3 CO 2 H + C 2 H 5 OH CH 3 CO 2 C 2 H 5 + H 2 O If the initial concentrations of the species are [CH 3 CO 2 C 2 H 5 ] o = 0.22 M ; [H 2 O] o = 0.10 M [CH 3 CO 2 H] o = 0.010 M ; [C 2 H 5 OH] o = 0.010 M What is the reaction quotient Q and in which direction will the reaction shift? [ ][ ] [ ][ ] 2.2 H5OH C H CO CH O H H C CO CH K 2 2 3 2 5 2 2 3 = =

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Example #1 [CH 3 CO 2 C 2 H 5 ] o = 0.22 M [H 2 O] o = 0.10 M [CH 3 CO 2 H] o = 0.010 M [C 2 H 5 OH] o = 0.010 M ( 29 ( 29 ( 29 ( 29 220 0.010M 0.010M 0.10M 0.22M Q = = Q >> K the reaction shifts to the left
Example #2 (Ex. 24) A solid sample of ammonium chloride was placed in an evacuated container and then heated so that it decomposed to ammonia and chlorine gas. After heating the total pressure in the flask was found to be 4.4 atm. Calculate K p at this temperature for the decomposition reaction NH 4 Cl(s) NH 3 (g) + Cl 2 (g) ( 29 ( 29 ? P P K 2 Cl 3 NH p = =

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Example #2 x NH 4 Cl(s) x NH 3 (g) + x Cl 2 (g) P Total = P NH3 + P Cl2 = 4.4 atm ( 29 ( 29 ( 29 2 2 2 Cl 3 NH p atm 4.84 2.2 P P K = = = P NH3 = P Cl2 = 2.2 atm n NH3 = n Cl2
Example #3

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ch6_ex - Example#1(Ex 29 The reaction K= 2.2 is carried out...

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