Question

Given a solution with a hydrogen ion concentration of 9.9 x10-13 M, calculate the
pОН. .

Answer 1

Answer: The pOH value is 2.

Step-by-step explanation:

Given:
`[H^(+)] = 9.9 * 10^(-13) M`

pH is defined as the negative logarithm of hydrogen ion concentration.

Hence, pH of the given solution is calculated as follows.

`pH = -log [H^(+)]\\= - log (9.9 * 10^(-13))\\= 12`

The relation between pH and pOH is as follows.

pH + pOH = 14

Therefore, pOH is calculated as follows.

pH + pOH = 14

12 + pOH = 14

pOH = 14 - 12

= 2

Thus, we can conclude that the pOH value is 2.