A mixture contains 80% of HCl and 20% H2O by weight, what is the mole fraction of HCl?
(a) 0.15
(b) 0.29
(c) 0.45
(d) 0.66
The question was posed to me during an internship interview.
Origin of the question is Mole Fraction and Mass(Weight) Fraction in division Moles, Density & Concentration of Basic Chemical Engineering