Question

$pH$ of $HCl$ (conc. $0.1mol/L$ ) is one. Compute the $pH$ of $0.05mol/L$ solution of $H_{2}S{O}_4$ :

• A. 0.05
• B. 0.5
• C. 1
• D. 2

Answer 1

Answer: (C)

Normality of $H_{2}S{O}_4=0.05\times 2=0.1N$

$pH=-\log \left[H^{+}\right]$

$=-\log \left[10^{-1}\right]=1$