1 Answer

Aldok · Answer 1 · 2021-03-18T11:30:56+0000

Answer: The concentration of
OH^- ions in the solution is 0.0063 M

Step-by-step explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pOH is calculated by taking negative logarithm of hydroxide ion concentration.

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

pH+pOH=14

11.8+pOH=14

pOH=2.2

Putting in the values:

$2.2=-\log[OH^-]$

[OH^-]= 0.0063 M

Thus the concentration of
OH^- ions in the solution is 0.0063 M

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