15. In the chemical equation H2O2(aq) → H2O(0) + O2(g), the O2 is a
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Answer : The vapor pressure (in atm) of a solution is, 0.679 atm
Explanation : Given,
Mass of = 1.00 kg = 1000 g
Moles of = 3.68 mole
Molar mass of = 18 g/mole
Vapor pressure of water = 0.692 atm
First we have to calculate the moles of .
Now we have to calculate the mole fraction of
Now we have to partial pressure of solution.
According to the Raoult's law,
where,
= vapor pressure of solution
= vapor pressure of water = 0.692 atm
= mole fraction of water = 0.938
Therefore, the vapor pressure (in atm) of a solution is, 0.679 atm