Question

46 grams of ethyl alcohol is dissolved in 18 g of water calculate the mole fraction of ethyl alcohol. (at. Wt. Of c = 12, 0= 16, h = 1).

Answer 1

Basic formula = moles of A / total moles

Moles of A = moles of glucose

18g / 180.2g = 0.1 moles

Moles of B = moles of water

500g/18g = 27.8 moles

0.1 / (27.9) = 3.58e-3 = mole fraction of glucose in solution