Answer to Question #209337 in General Chemistry for anna

Question #209337

The normal freezing point of ethanol is -117.30 oC. How many grams of electrolyte KF (molar mass=58.1 g/mole) must be added to 35.0 g of ethanol (Kf(ethanol)=1.99 oC/m) to change its freezing point to -120.25 oC?

Expert's answer

Grams of electrolyte KF=67.4g

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