Question

The percentage composition (by weight) of a solution is 45% X, 15% Y, 40% Z.
Calculate the mole fraction of each component of the solution. (Molecular mass
of X = 18, Y = 60, Z = 60).​

Answer 1

Answer:let the mass be 100 g

X 45g

Y 15 g

Z 40 g

18 g x=1 mole x

45 g x=2.5 mole x

Similarly

Y= 0.25 mole

Z=0.67 mole

Mole fraction of x= 2.5 / (2.5+1.5+0.67) =0.5353

Similarly calculate the rest

Explanation: