Question

Assuming complete disassociation, the pH of a 2 mH solution of $H_{2}S{O}_4$ is closest to

• A. 0
• B. 3.7
• C. 2.4
• D. 2.7

Answer 1

The correct option is C 2.4

$H_{2}S{O}_4\to 2H^{+}+S{O}_4^{-2}$

$pH=-log[2\times H^{+}]$

$pH=-lo{g}_{10}[2\times 2\times {10}^{-3}]=2.4$