Question

What is the number of moles of solute in a .3 molality solution containing .10 kg of solvent?

Answer 1

Answer:

0.03

Explanation:

Answer 2

Concentration can be expressed in different forms: molarity, molality, normality, percentage, part per million and many more. For molality, it is a unit of concentration expressed as moles of solute per kilogram of solvent. Therefore,

0.3 = moles solute/0.10 kg solvent
moles solute = 0.03 moles