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

Question

asked Sep 23, 2020 234k views

2 Answers

Pete Amundson · Answer 1 · 2020-09-26T03:21:51+0000

Answer: 9.88 (approx10)

Step-by-step explanation:

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

Jackson Tale · Answer 2 · 2020-09-29T01:44:13+0000

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.