[chaim]

im reviewing for a test, and this question is killing me..

3. What is the mole fraction, X, of sugar in maple syrup? It is 66 mass % sugar (C6H12O6, MWt = 180
g/mol).
a) 0.66
b) 0.367
c) 0.586
d) 0.163
e) none of these


thats all the information we get.. i assumed 100g of solution.. so 66 grams of sugar nets me 0.367 moles of sugar. but .. how the hell do i get the total moles of solution?? i have no idea.

im sure its something simple im missing.. but i dont know.

the answer is supposed to be D (0.163) by the way.

[AWK]

Now calculate moles of water.

[chaim]

yeah.. i smacked my head when i realized that.

thanks though.