Question

Calculate the strength of 10 volume
solution of hydrogen peroxide.
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Answer 1

10 volume solution of H2O2 means that 1L of this H2O2 solution will give 10L of oxygen at STP. Hence, strength of H2O2 in 10 volume H2O2 solution = 30 g / L = 3% H2O2 solution.

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Answer 2

∴ 22.7 L of O2 is produced from = 68g H2O2 at STP

10L of O2 at STP will be produced

68 x 10 / 22.4

30 g H2O2