Question

A bucket contains 10 kg of water and 10 kg of NaOH. The respective mass fraction of water and the mole fraction of NaOH are

(a) 0.5 and 0.31

(b) 1.0 and 0.62

(c) 0.5 and 0.69

(d) 1.0 and 0.50

I have been asked this question in examination.

Asked question is from Mole and Molecular Weight-III topic in portion Introductory Concepts of Chemical Process Calculation

Answer 1

Right option is (a) 0.5 and 0.31

The explanation is: Mole fraction of X = moles of X/total moles and mass fraction of X = mass of X/total mass.