Question

A 50.00 mL sample of H₂SO₄ is titrated with a 0.3001 M sample of Ba(OH)₂. The titration requires 18.25 mL of Ba(OH)₂ to reach the equivalence point. What is the concentration of H₂SO₄.

Answer 1

The balanced reaction will be

Ba(OH)2 + H2SO4 ---------- BaSO4 + 2H2O

As per the balanced reaction, moles of H2SO4 must be same as moles of Ba(OH)2

Volume of H2SO4(in L) * Concentration of H2SO4 = Volume of Ba(OH)2 (in L) * Concentration of Ba(OH)2

50.00/1000 * Concentration of H2SO4 = 18.25/1000 * 0.3001

Concentration of H2SO4 = (18.25 * 0.3001)/50.00 = 0.1095 M

Hence the concentration of H2SO4 solution will be equal to 0.1095 M

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