Question

The $pH$ of a solution prepared by mixing 50.0 mL of 0.125 M $KOH$ and 50.0 mL of 0.125 M $HCl$ is ______.

• A. 6.29
• B. 7
• C. 8.11
• D. 5.78

Answer 1

Answer: (B)

7

For neutralization,

$M_1{V}_1=M_2{V}_2$

$\Rightarrow 0.125\times 50=0.125\times 50$

$\because$ The concentration and volume of both acid are same thereby neutralizing each other, hence $pH=7$.