Asked by jerry
When 18 g of ethylene glycol C2H6O2 is dissolved in 150 g of pure water, the freezing point of the solution is
_____ C. (The freezing point depression constant for water is 186C kgmol.
_____ C. (The freezing point depression constant for water is 186C kgmol.
Answers
Answered by
DrBob222
moles ethylene glycol = grams/molar mass
solve for moles ethylene glycol.
molality = mols/kg solvent
solve for molality
delta T = Kf*m
solve for delta T
Subtract delta T from zero C to obtain the freezing point.
solve for moles ethylene glycol.
molality = mols/kg solvent
solve for molality
delta T = Kf*m
solve for delta T
Subtract delta T from zero C to obtain the freezing point.
Answered by
martin
b. What is the freezing point depression when 153 g of bromine is added to 100 g of benzene?
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