Can someone explain how to do this?
a solution is made by dissolving 10.20 grams of glucose (c6h12o6) in 355 grams of water. what is the freezing-point depression of the solvent if the freezing point constant is -1.86 °c/m? show all of the work needed to solve this problem.
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Ответ:
ΔTf = kf (m) where kf is the freezing point depression constant and m is the molality of the solution
m = n solute / m solvent = 10.20 g (1 mol / 180.18 g ) / .355 kg = 0.16 mol/kg
ΔTf = kf (m)
ΔTf = -1.86 (0.16) = - 0.2976 °C
Hope this answers the question.
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