Question

equal volumes of solutions pH values 8 10 12 are mixed with each other the pH of resulting solution is nearly​

Answer 1

when 3 pH values 8,10,12 are mixed with each other the pH resulting solution is nearly basic in nature

Answer 2

The pH of resulting solution is nearly​ 8.47

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.

1. pH = 8

Putting in the values:

$8=-\log[H^+]$

$[H^+]=10^{-8}$

2. pH = 10

Putting in the values:

$10=-\log[H^+]$

$[H^+]=10^{-10}$

3. pH = 12

Putting in the values:

$12=-\log[H^+]$

$[H^+]=10^{-12}$

Thus total $[H^+]=\frac{10^{-8}+10^{-10}+10^{-12}}{3}=\frac{10^{-8}(1+10^{-2}+10^{-4})}{3}=3.37\times 10^{-9}$

pH of resulting solution , $pH=-\log[H^+]=-\log[3.37\times 10^{-9}]=8.47$

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