2.82g of glucose is dissolved in 30g of water. The mole fraction of glucose in the solution is

Options

A. 0.01
B. `0.99`
C. `0.52`
D. 1.66

Answer

A

Explanation

No. of moles of glucose `=(2.82)/(180)=0.01567`
No. of moles of water `=30/18=1.667`
Total of moles of solution =0.01567+1.667=1.683
Moles fraction glucose `=(0.01567)/(1.683)=0.0093=0.01`