Consider the reaction: A + 3B <--> 2C + 4D. A solution was
prepared by mixing 50.0 mL of 1.00 x 10-3 M A, 100.0 mL
of 2.00 x 10-3M B, 10.0 mL of 1.0 M C, and 75.0 ml of
1.50 x 10-3 M D. At equilibrium the concentration of D
was measured and found to be 6.0 x 10-4M. Calculate:(a)
the equilibrium concentrations of A,B,C, and D; (b) the value of
the equilibrium constant K for the reaction.