added to a 0.3 M solution of fructose 6-
phosphate, and the reaction is allowed to
proceed to equilibrium, the ﬁnal concentra-
tions are 0.2 M glucose 6-phosphate and 0.1
M fructose 6-phosphate. These data give an
equilibrium constant of 2. What is the equi-
librium constant if the initial concentration of
fructose 6-phosphate is 3 M?