Question

What is the pOH of a solution that has a OH - concentration equal to 1.3x 10^-10

Answer 1

Answer: 9.88 (approx10)

Step-by-step explanation:

The pOH of a solution is the negative logarithm of the hydroxide-ion concentration

Answer 2

Answer: pOH = 9.88

Step-by-step explanation:pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

Acids have pH ranging from 1 to 6.9, bases have pH ranging from 7.1 to 14 and neutral solutions have pH equal to 7.

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

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

Putting in the values:

`pOH=-\log[1.3* 10^(-10)]`

`pOH=9.88`

`pH+pOH=9.88`

`pH=14-9.88=4.12`

Thus as pH is less than 7 the solution is acidic and pOH is 9.88.