Question

Mass of lauric acid in mixture 8 g Mass of benzoic acid in mixture 1 g Freezing temperature of pure lauric acid 43.0 °C Freezing point of the benzoic acid–lauric acid mixture 39.0 °C Freezing temperature depression, ?T: comparing pure and mixture Molality of the solution (?T = Kf • m• i and Kf = 3.9°C•kg/mol) Show calculations The solvent is: The solute is:

          Mass of lauric acid in mixture 8 g
Mass of benzoic acid in mixture 1 g
Freezing temperature of pure lauric acid 43.0 °C
Freezing point of the benzoic acid–lauric acid mixture 39.0 °C
Freezing temperature depression, ?T: comparing pure and mixture
Molality of the solution (?T = Kf • m• i and Kf = 3.9°C•kg/mol)
Show calculations
The solvent is: The solute is:

Mass of lauric acid in mixture 8 g
Mass of benzoic acid in mixture 1 g
Freezing temperature of pure lauric acid 43.0 °C
Freezing point of the benzoic acid–lauric acid mixture 39.0 °C
Freezing temperature depression, ?T: comparing pure and mixture
Molality of the solution (?T = Kf • m• i and Kf = 3.9°C•kg/mol)
Show calculations
The solvent is: The solute is:

Added by Stephanie S.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Adi S

06/23/2023

Step 1

First, we need to find the freezing point depression, ΔT: ΔT = Freezing temperature of pure lauric acid - Freezing point of the benzoic acid-lauric acid mixture ΔT = 43.0°C - 39.0°C ΔT = 4.0°C Show more…

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Mass of lauric acid in mixture: 8 g Mass of benzoic acid in mixture: 1 g Freezing temperature of pure lauric acid: 43.0 °C Freezing point of the benzoic acid–lauric acid mixture: 39.0 °C Freezing temperature depression, ΔT: comparing pure and mixture Molality of the solution (ΔT = Kf • m• i and Kf = 3.9°C•kg/mol) Show calculations The solvent is: The solute is: