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The purity of H2O2 in a given sample is 85%. Calculate the weight of impure sample of H2O2 which requires 10 mL of M/5 KMnO4 solution in a titration in acidic medium 2.0 g 0.2 g 0.17 g 0.15 g

The purity of H2O2 in a given sample is 85%. Calculate the weight of impure sample of H2O2 which requires 10 mL of M/5 KMnO4 solution in a titration in acidic medium
 
  • 2.0 g
  • 0.2 g
  • 0.17 g
  • 0.15 g

Grade:11

1 Answers

Arun
25750 Points
5 years ago
Mass of 100% pure H2O2 required = 0.17 g
Mass of 85% pure H2O2 required = 0.17 x (100/85)
  = 0.2 g

Thus, weight of impure sample of H2O2 = 0.2 g

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