Question

what is the molality of a solution formed when 80.0 moles of potassium hydroxide (koh) are mixed with 5.4 kg of water?

Answer 1

15 mol/kg or 14.81 mol/kg

Step-by-step explanation:

Formula: molality = moles of solute ÷ kilogram of solvent

Solution :

m = 80.0 mols / 5.4 kg = 14.81 mol/kg

In 2 significant figures: 15 mol/kg