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Question: What is the mole fraction of glucose in 10 % w/W glucose solution?...

What is the mole fraction of glucose in 10 % w/W glucose solution?

A

0.010.01

B

0.020.02

C

0.030.03

D

0.040.04

Answer

0.010.01

Explanation

Solution

No. of moles of glucose =10180=0.0555 mol= \frac { 10 } { 180 } = 0.0555 \mathrm {~mol}

No. of moles of water =9018=5 mol= \frac { 90 } { 18 } = 5 \mathrm {~mol}

Number of moles of solution = 5.0555 mol

Mole fraction of glucose

=0.05555.0555=0.01= \frac { 0.0555 } { 5.0555 } = 0.01