Question

What is the pH of a solution containing hydrogen ion with $1\times {10}^{-3}$ concentration?

• A. $11$
• B. $3.5$
• C. $3$
• D. $11.5$

Answer 1

The correct option is C $3$

The pH of a solution containing hydrogen ion with $1\times {10}^{-3}$ concentration is $+3$.
$pH=-log\left[H^{+}\right]=-log1\times {10}^{-3}=3$