Question

In 10 ml of h2o2 solution, excess of acidified solution of ki is added. The iodine liberated needs 20 ml of 0.1m na2s2o3 solution. The volume strength of h2o2 is

Answer 1

To a 25 mL H2O2 solution, excess of acidified solution of potassium iodide was added. The iodine liberated required 20 mL of 0.3 N sodium thiosulphate solution. Calculate the volume strength of H2O2 solution.