Question

If you combine 25.0 gg of a solute that has a molar mass of 25.0 g/molg/mol with 100.0 gg of a solvent, what is the molality of the resulting solution?

Answer 1

Answer:

10 mol/kg.

Explanation:

Molality can be defined as the number of moles of solute divided by the mass of solvent.

Number of moles = mass/molar mass

= 25/25

= 1 mol.

Mass of solvent in kg = 100 g * 1 kg/1000 g

= 0.1 kg

Molality, m = 1/0.1

= 10 mol/kg.

Answer 2

Answer: 10.0 m is the answer