Asked by jamela
Calculate the freezing point of the following solutions, assuming complete dissociation.3.7% KCL by mass (in water)
Answers
Answered by
DrBob222
3.7% KCl = 3.7 g KCl/100 g soln =
3.7 g KCl/(3.7 g KCl + 96.3 g H2O) =
Convert 3.7 g KCl to moles. moles = grams/molar mass
Then molality = moles/kg solvent.
delta T = i*kf*m
i = 2, kf you know and m from above.
3.7 g KCl/(3.7 g KCl + 96.3 g H2O) =
Convert 3.7 g KCl to moles. moles = grams/molar mass
Then molality = moles/kg solvent.
delta T = i*kf*m
i = 2, kf you know and m from above.
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