Answer:
Molality is 0.45 mol/kg for the LiCl
Explanation:
Molality → Moles of solute in 1kg of solvent
Let's convert the moles of solvent, water to mass (g)
Afterwards we need to convert the mass from g to kg
Molality → mol / kg
First step: 13.7 mol . 18 g / 1mol = 246.6 g
2nd step: 246.6 g . 1kg / 1000 g = 0.2466 kg
Molality → mol/kg → 0.112 moles / 0.2466 kg → 0.45 molal
