Question

What is the hydroxide ion concentration in a solution of NH3 with a pOH of 4.65?

Answer 1

Answer : The hydroxide ion concentration in a solution of ammonia is, $2.2\times 10^{-5}M$

Explanation : Given,

pOH = 4.65

pOH : It is defined as the negative logarithm of hydroxide ion concentration.

Mathematically it is represented as :

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

$4.65=-\log [OH^-]$

$[OH^-]=2.2\times 10^{-5}M$

Therefore, the hydroxide ion concentration in a solution of ammonia is, $2.2\times 10^{-5}M$

Answer 2

                            -5
[OH-]=2.24 X 10    M