Answer
a. Since $3.7 \times 10^8 \gt\gt 1$, the equilibrium mixture contains mostly products.
b. Since $7.4 \times 10^{-26} \lt \lt 1$, the equilibrium mixture contains mostly reactants.
Work Step by Step
- If $K_c \gt\gt 1$, the equilibrium mixture contains mostly products.
- If $K_c \lt\lt 1$, the equilibrium mixture contains mostly reactants.
- If $K_c \approx 1$, the equilibrium mixture contains similar amounts of reactants and products.
a. Since $3.7 \times 10^8 \gt\gt 1$, the equilibrium mixture contains mostly products.
b. Since $7.4 \times 10^{-26} \lt \lt 1$, the equilibrium mixture contains mostly reactants.