Question

What can be the pH of a solution, if it has the concentration of hydroxide ion as $1\times {10}^{-4}$ mole/liter?

• A. $4$
• B. $10$
• C. $10.5$
• D. $4.5$

Answer 1

Answer: (B)

$10$

The pH of a solution will be 10 if it has the concentration of hydroxide ion as $1\times {10}^{-4}$
mole/liter.
$pOH=-log\left[O{H}^{-}\right]=-log1\times {10}^{-4}=4pH=14-pOH=14-4=10$