TitrationMediumQuestion 600042
Question
In an acid-base titration, 25 mL of 0.2 M NaOH exactly neutralises 20 mL of HCl. The molarity of HCl is:
- A0.16 M
- B0.25 MCorrect
- C0.4 M
- D0.5 M
Correct answer
0.25 M
Explanation
M₁V₁ = M₂V₂ → 0.2 × 25 = M₂ × 20 → M₂ = 5/20 = 0.25 M.