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The mole fraction of C(2)H(5)OH (Molar m...

The mole fraction of `C_(2)H_(5)OH` (Molar mass = 46 ) in 5 molal aqueous ethyl elchol solution is

A

0.0826

B

0.826

C

5

D

5/55.55

Text Solution

Verified by Experts

The correct Answer is:
A
5 molal aqueous ethyl alcohol sol. Means 5 moles of ethyl alcohol in 1000 g of water =1000/18 moles = 55.56 moles
`x_(2)=5/(5+55.56)=5/(60.56)=0.082`
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