A 25.0 mL sample of H₂SO₄ is titrated with 0.100 M NaOH. The endpoint is at 30.0 mL. What is the H₂SO₄ concentration?
Q1. A 25.0 mL sample of H₂SO₄ is titrated with 0.100 M NaOH. The endpoint is at 30.0 mL. What is the H₂SO₄ concentration?
Answer: 0.0600 M
Explanation: [2×0.100×0.030]/0.025 = 0.0600 M. B ignores 1:2 stoichiometry.