The ionic product of water is `10^(-14)`. What is the hydrogen ion concentration of a 0.1 M NaOH solution?

Options

A. `10^(-14)`
B. 14 M
C. 13 M
D. `10^(-13)` M

Answer

D

Explanation

`K_(w) = [H^(+)][OH^(-)] = 10^(-14)`
M of NaOH i.e., `[OH^(-)] = 10^(-1)M`
`:. [H^(+)][OH^(-)] = 10^(-1)M`
`:. [H^(+)][10^(-1)] = 10^(-14)`
`[H^(+)]10^(-14)/10^(-1)`
`[H^(+)] = 10^(-13)M`