Asked by Ryan
An aqueous solution containing 35.1 grams of an unknown molecular (noneolectrolyte) compound in 152.5 grams of water was found to have a freezing point of -1.8 degrees C. Calculate the molar mass of the unknown compound.
Answers
Answered by
DrBob222
delta T = Kf*molality
Solve for molality
molality = moles/kg solvent
Solve for moles
moles = grams/molar mass
solve for molar mass.
Solve for molality
molality = moles/kg solvent
Solve for moles
moles = grams/molar mass
solve for molar mass.
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