delta T = Kb*molality
Solve for molality
m = moles/kg solvent
Solve for moles
moles = grams/molar mass
Solve for molar mass.
A 2.97 g sample of a molecular compound
is dissolved in 103 g of tetrachloromethane
(carbon tetrachloride). The normal boiling
point of the solution is 61.51�C, the normal
boiling point of CCl4 is 61.2�C. The boiling
point constant for CCl4 is 4.95 K · kg/mol.
What is the molar mass of the compound?
2 answers
pv=nrt
2 answers