Question
0.2 g OF SAMPLE OF H2O2 REQUIRED 10ml OF 1N KMnO4 SOLn IN A TITRATION IN +NCE OF dil H2SO4 . THE % PURITY OF H2O2 IS?
ANS 85
Joshi sir comment
No. of gm. equivalent of KMnO4 = No. of gm. equivalent of H2O2
so 1*10/1000 = x / 17 (17 is eq. wt. of H2O2)
so x = 0.17
so % purity = 0.17*100/0.2 = 85