What Mass of Ethanol, C₂H₅OH a Nonelectrolyte, Must Be Added

question 91

Multiple Choice

What mass of ethanol, C₂H₅OH a nonelectrolyte, must be added to 10.0 L of water to give a solution that freezes at -10.0°C? Assume the density of water is 1.0 g/mL. K_f of water is 1.86°C/m.

• A)85.7 kg
• B)24.8 kg
• C)5.38 kg
• D)2.48 kg
• E)1.17 kg

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