Quiz Grade _________         Quiz 2     Name ____________________
June 5, 1996                CHM 1046                             
                                   Soc.Sec.Num.__________________

     This quiz is take-home and open book.  You may collaborate
with others, but you would also be wise first to try taking it as
a timed exercise to practice for hour tests.  You should be able to
complete a quiz of this length in about 25 minutes.  The completed
quiz is due at the beginning of class on Friday, June 7.  

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)