What mass (g) of the solute C3H8O3 should be mixed with 8270 mL of the solvent H2O to produce a solution that is 1.02 m glycerol.

Molar Mass (g/mol)
C3H8O3 92.09
H2O 18.015

Density (kg/L):
C3H8O3 1.261
H2O 0.9982

Name/Formula:
glycerol
C3H8O3
water
H2O

1 answer

mols solute/kg solvent = molality
You know molality, you know kg solvent, calculate mols solute.
Then mols = grams/molar mass.
You know mols from above, you know molar mass solute, calculate grams solute.