Question

What is the mole fraction of KCl in a 0.20 molal solution of KCl? (molar mass of KCl = 75 g; molar mass of water = 18 g)

Answer 1

mole fraction is like asking what is the % KCl in the solution
0.2m KCl = 0.2moles KCl in 1000g H2O
0.2moles KCl and 1000g/18g/mole = 55.56moles H2O
mole fraction KCl = 0.2moles / (55.56moles water + 0.2moles KCl) = 0.0036

Answer 2

Connections?

Answer 3

I basically read that explanation and understood nothing... oml and what do you mean by connections?