Question

2 gram of ethanol is dissolves in 80 grams of water. calculate the mole fraction of each component

Answer 1

Moles of ethanol = 2/46 = 0.043
Moles of water = 80/18 = 4.44

Mole fraction of ethanol = 0.043 / (0.043 + 4.44) = 0.009
Mole fraction of water = 1 - 0.009 = 0.991