Chapter 16.8, Problem 1CP

Calculate the equilibrium concentration of ${\text{CO}}_3^{2-}$ in a 0.050-M solution of carbonic acid at $\text{25°C}$.

a)

$4.2 \times {10}^{-7}M$

b)

$4.8 \times {10}^{-11}M$

c)

$1.5 \times {10}^{-4}M$

d)

$0.050M$

e)

$0.049M$