Quiz Grade _________         Quiz 2     Name ____________________

You should be able to complete a quiz of this length in about 25 minutes. 

Points

(4)1.Write the expression for the equilibrium constant of the
     following reaction:

Al2(SO3)3(s) + 6 HCl (g)  þ  2 AlCl3(s) + 3 H2O (g) + 3 SO2 (g)









2.   The following reaction was carried out at 25 oC with the
     initial concentration of NO2 being 0.70 mol/L, with no NO or
     O2 present.  At equilibrium, the NO2 concentration was found
     to be 0.28 mol/L.  

          2 NO2(g)  þ    2 NO (g)   +    O2(g)

(6)  (a)  Calculate Kc for the reaction.


















(3)  (b)  Calculate Kp for the reaction.







(7)2.Kc for the following reaction is 0.070.   Calculate the
     equilibrium concentration (in mol/L) of each reactant and
     product if the initial concentration of C4H10 is 0.055 M, with
     no C2H6 or C2H4 present initially.

          C4H10(g)   þ   C2H6(g)    +   C2H4(g)