Question

The pH of 0.001 M NaOH_(aq) solution will be:

विकल्प

• 9

• 7

• 11

• 12

Answer 1

11

Explanation:

[OH⁻] = 0.001 M

pOH = −log₁₀ [OH⁻] = −log₁₀ [0.001] = 3

pH = 14 − pOH = 14 − 3 = 11