30ml of hydrogen peroxide solution was added with added with excess potasium iodide. The iodide liberated was titrated using starch indicator with 20ml of 0.3N sodium thiosulphate solution.Calculate the normality of hydrogen peroxide solution.

30ml of hydrogen peroxide solution was added with added with excess po

1.	30ml of hydrogen peroxide solution was added with added with excess potasium iodide. The iodide liberated was titrated using starch indicator with 20ml of 0.3N sodium thiosulphate solution.Calculate the normality of hydrogen peroxide solution.
Answer» Solution :NORMALITY equation for iodometry is given as ,`V_(1)N_(1)=V_(2)N_(2)` `N_(1)=(V_(2)N_(2))/(V_(1))=(20xx0.3)/(30)=0.2` Normality `H_(2)O_(2)` solution = 0.2 eq `L^(-1)`