Q15 of 30 Page 188

Calculate the strength of 5 volume H2O2 solution.

5 volume solution of H2O2 means that 1L of this H2O2 will give 10L of oxygen at STP

2H2O2(l) → O2 (g) + H2O(l)


2*34 g 22.4L at STP


68g


22.4L of O2 at STP is produced from H2O2 = 68g


5L of O2 at STP is produced from H2O2 = = 15.18g


Therefore, the strength of H2O2 in 5 volume H2O2 = 15.18g/L


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