What are the and in a solution of an acid that has ?

CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases

Problem

What are the

[\text{H}^+]

and

[\text{OH}^-]

in a

0.10 \text{ mol dm}^{-3}

solution of an acid that has

K_a = 1.0 \times 10^{-7}