Question
What mass of glycerin (C3H8O3), a nonelectrolyte, must be dissolved in 216.2 g water to give a solution with a freezing point of -1.62 °C?
Answers
DrBob222
delta T = Kf*molality.
Solve for molality.
molality = moles/kg solvent.
Solve for moles.
moles = grams/molar mass.
Solve for grams.
Solve for molality.
molality = moles/kg solvent.
Solve for moles.
moles = grams/molar mass.
Solve for grams.