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  4. The mole fraction of water in 20% aqueous solution of H2O2 is

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Q. The mole fraction of water in 20% aqueous solution of $ {{H}_{2}}{{O}_{2}} $ is

BHUBHU 2011

Solution:

Mole fraction of water $ =\frac{\frac{80}{18}}{\frac{80}{18}+\frac{20}{34}}=\frac{68}{77} $