The solubility of oxygen in water is 23.4×10-³ mol dm-³ at 25°C and 1 atm pressure. Calculate the concentration of oxygen at 25°C and 0.2 atm pressure
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Explanation:
moles of water =
18
900
=50
According to Raoult's law, mole fraction of solvent =
P
solvent
O
P
solvent
=
30
24
=
5
4
=0.8
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