5.70 g of NH4Cl is added to 13.3 g of water. Calculate the molality of the solution.

Answer 1

moles NH4Cl = grams NH4Cl/molar mass
m NH4Cl = moles/kg solvent.

Answer 2

7.30 g of NH4Cl is added to 11.9 g of water. Calculate the molality of the solution.