Chemistry

Problem

Given that

K_{\text{w}}

for water at 25 °C is

1.0 \times 10^{-14}

, and that

K_{\text{w}} = [\text{H}^+][\text{OH}^-]

, calculate

[\text{OH}^-]

for the following solutions: a. a a solution of NaOH with a concentration of 0.10

\text{mol dm}^{-3}

b. b a solution with

[\text{H}^+] = 4.65 \times 10^{-4} \text{ mol dm}^{-3}

c. c a solution with a pH of 2.52 d. d a solution with a pH of 8.67.