If an aqueous solution has a hydroxyl ion concentration of 1 × 10 − 6 M, what is the concentration of hydrogen ion ( [ H + ] ) ?

Question

asked Jul 3, 2021 217k views

1 Answer

Barry Watts · Answer 1 · 2021-07-08T06:52:33+0000

Answer : The concentration of
H^+ ion is,
1* 10^(-8)M

Explanation : Given,

Concentration of
OH^- ion =
1* 10^(-6)M

First we have to calculate the pOH.

$pOH=-\log [OH^-]$

$pOH=-\log (1* 10^(-6))$

pOH=6

Now we have to calculate the pH.

$pH+pOH=14\\\\pH=14-pOH\\\\pH=14-6\\\\pH=8$

First we have to calculate the concentration of
H^+ ion.

$pH=-\log [H^+]$

$8=-\log [H^+]$

[H^+]=1* 10^(-8)M

Thus, the concentration of
H^+ ion is,
1* 10^(-8)M