Solutions Question 245

Question: A solution contains 1 mole of water and 4 mole of ethanol. The mole fraction of water and ethanol will be

Options:

A) 0.2 water + 0.8 ethanol

B) 0.4 water + 0.6 ethanol

C) 0.6 water + 0.8 ethanol

D) 0.8 water + 0.2 ethanol

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Answer:

Correct Answer: A

Solution:

0.2 water + 0.8 ethanol; XA= mole fraction of water, XB= mole fraction of ethanol XA=N1N1+N2 , XB=N2N2+N1
Mole fraction of water = 0.2 and ethanol = 0.8.



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