1.

Aqueous ethanol is labelled as 2 molal. Find the mole fraction of alcohol.

Answer»

Solution :1000G of WATER HA 2 MOLE of ethanol
55.5 moles of water has 2 mole of ethanol or `X=(m)/(m+55.5)`
Mole fraction alcohol`=(2)/(2+55.5)=(2)/(57.5)=0.0348`


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