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Concept explainers
Interpretation:
For given solution vapor pressure lowering, freezing point depression, boiling point elevation and osmotic pressures to be calculated.
Concept introduction
Boiling point elevation
Where,
Freezing point depression
Where,
Osmotic pressure is the pressure that is needed to stop osmosis. Osmotic pressure of the solution is directly proportional to the concentration of the solution. We can calculate osmotic pressure by using this formula is given by,
Where,
Vapor pressure lowering: Vapor pressure lowering is one of the colligative properties. Pure solvent has higher vapour pressure than its solution have non-volatile liquid. Thus vapour pressure lowering guide boiling point elevation.
Where,
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Answer to Problem 13.79QP
Vapour pressure lowering of the solution =
Freezing point elevation =
Boiling point elevation =
Osmotic pressure =
Explanation of Solution
Given data
Molar mass of egg white =
Amount of enzyme which is dissolved in water =
Amount of water =
Vapor pressure of water =
Calculation of number of moles in lysozyme and water
Molecular mass of water =
By plugging in the value of amount of Isozyme and molar mass of egg white, mole of Isozyme has calculated. Similarly, by plugging in the value of amount of water and molar mass of water, mole of water has calculated.
Calculation of vapour pressure lowering of the solution
By plugging in the values of mole fraction of Isozyme and vapour pressure of water, vapour pressure lowering of the solution has calculated.
Calculation freezing point depression of the solution
Molal freezing point depression constant =
By plugging in the values of molal freezing point depression constant and molality of the solution, freezing point depression of the solution has calculated.
Calculation of boiling point elevation of the solution
Boiling point elevation constant =
By plugging in the values of boiling point elevation constant and molality of the solution, boiling point elevation of the solution has calculated.
Calculation of osmotic pressure of the solution
As known above, we assume the density of the solution is
By plugging in the values of molarity of the solution, ideal gas constant and temperature in Kelvin, the osmotic pressure of the solution has calculated.
Vapour pressure lowering of the solution was calculated as
Freezing point elevation has calculated as
Boiling point elevation has calculated as
Osmotic pressure has calculated as
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Chapter 13 Solutions
General Chemistry
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