Question

The strength of H2O2 (in g/litre) in 11.2 volume solution of H2O2 is?

Answer 1

Answer:

Explanation:

volume strength is the volume of oxygen at S.T.P(standard temperature and pressure) liberated from 1 volume of H2O2 on heating.

2H2O2 --- H2O + 2O2

from stoichiometry, 2 moles of hydrogen peroxide produces 1 mole of oxygen & 1 mole contains 22.4L at S.T.P.

1 mole of H2O2 gives 11.2L of O2

M mole of H2O2 gives 11.2 x M L of O2 (M= molarity)

1L of H2O2  gives 11.2 x M L of O2 (according to defintion of molarity,it is number of moles in 1L of solution)

therefore, Volume strength of H2O2 = 11.2 x M