Question

Aqueous solutions containing approximately 3 percent(w/w) H₂O₂ are sold in drug stores as a disinfectant. Determination of the actual concentration of H₂O₂ in a bottle of peroxide solution was done by diluting 1.25 mL to 100 mL with water, acidifying with dilute H₂SO₄ and titrating with a 0.01560 M KMnO₄ solution. If 34.24 mL of the permangate solution was needed to reach the end point of the titration, what is the actual molar concentration of the H₂O₂ solution?

Answer 1