Question

pH of $HCl$ (conc. $0.1 \, mol/L$ ) is one. Compute the pH of $0.05\, mol/L$ solution of $H_{2}SO_{4}$ .

• A. $0.05$
• B. $0.5$
• C. $1$
• D. $2$

Answer 1

Answer: (C)

$1$

Answer 2

Normality of $H _{2} SO _{4}=0.05 \times 2=0.1 \,N$ $\therefore p H=-\log \left[ H ^{+}\right]$ $=-\log \left[10^{-1}\right]$ $\because=1$