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 $H_{2}S{O}_4=0.05\times 2=0.1N$
$\therefore pH=-\log \left[H^{+}\right]$
$=-\log \left[10^{-1}\right]$
$\because =1$