Which of the following regarding the vapor pressure of a solution containing a nonvolatile solute is...
Which of the following regarding the vapor pressure of a solution containing a nonvolatile solute is NOT correct?
A. The amount by which the vapor pressure of the solution is reduced reflects the mole fraction of the solute in the solution.
B. The presence of a nonvolatile solute reduces the mole fraction of the pure solvent.
C. The condensation rates of the pure solvent and the solution are probably about equal in a closed container.
D. The evaporation rate of the pure solvent in an open container is higher than that of the solution.
E. Raoult's law predicts that the solution containing a solute that experiences strong solute-solvent attractions will have lower vapor pressure than an ideal solution.
Homework Answers
Which of the following regarding the vapor pressure of a solution containing a nonvolatile solute is NOT correct?
Correct option is :
- A. The amount by which the vapor pressure of the solution is reduced reflects the mole fraction of the solute in the solution.
Add Answer to:
Which of the following regarding the vapor pressure of a
solution containing a nonvolatile solute is...
A mystery solution (with a mole fraction of solute of 0.15) has a vapor pressure of...
A mystery solution (with a mole fraction of solute of 0.15) has a vapor pressure of 65.0 torr at 85 C. What is the vapor pressure of the pure solvent at 85.0 C. Assume that the solute is nonelctrolyte.
A mystery solution (with mole fraction of solute of 0.15) has a vapor pressure of 65.0...
A mystery solution (with mole fraction of solute of 0.15) has a vapor pressure of 65.0 torr at 85 degrees C. What is the vapor pressure of the pure solvent at 85 degrees C? Assume the solution is a nonelectrolyte.
1.The presence of a dissolved nonvolatile solute in a solution causes the freezing point to be...
1.The presence of a dissolved nonvolatile solute in a solution causes the freezing point to be _____________ (raised, lowered) compared to that of the pure solvent. The change in freezing point of the solvent can be calculated using the equation: 2.The presence of a dissolved nonvolatile solute in a solution causes the boiling point to be _____________ (raised, lowered) compared to that of the pure solvent. The change in boiling point of the solvent can be calculated using the equation:...
The plot here shows the vapor pressure of a solution that exhibits ideal behavior solute-solvent interactions...
The plot here shows the vapor pressure of a solution that
exhibits
ideal behavior
solute-solvent interactions that are about as strong as
solute-solute and solvent-solvent interactions.
weak solute-solvent interactions.
strong solute-solvent interactions
Vapor pressure of solution 0.0 0.2 0.4 0.6 0.8 1.0 XA
The normal boiling point of diethyl ether is 34.5 degrees C. A solution containing a nonvolatile...
The normal boiling point of diethyl ether is 34.5 degrees C. A solution containing a nonvolatile solute dissolved in diethyl ether has a vapor pressure of 675 torr at 34.5 degrees C. What is the mole fraction of diethyl ether in the solution?
7. Consider the expression of Raoult's law, Psolution = Xsolvent ·P⁰solvent . Here, Psolution = vapor...
7. Consider the expression of Raoult's law, Psolution = Xsolvent ·P⁰solvent . Here, Psolution = vapor pressure of the solution, P⁰solvent = vapor pressure of pure solvent, Xsolvent = mole fraction of the solvent. What is the mole fraction of solvent in a solution with a vapor pressure of 47.90 torr, if the vapor pressure of the pure solvent is 52.82 torr? 8. The boiling point of a solution increases directly as a function of the number of moles of...
In a mixture of volatile substances, the vapor pressure of the solution depends on the vapor...
In a mixture of volatile substances, the vapor pressure of the solution depends on the vapor pressure of both substances (solute and solvent). Each component can evaporate, but its vapor pressure is lowered by the presence of the other substance following Rault's law. The vapor pressure of the solvent is calculated using Psolvent = Xsolvent*Posolvent and the vapor pressure of the solute is calculated using Psolute = Xsolute*Posolute. The total vapor pressure can be calculated by Dalton's law of partial...
1. As the mole fraction of chloroform approaches 1, the vapor pressure of acetone could be...
1. As the mole fraction of chloroform approaches 1, the vapor
pressure of acetone could be calculated using
A. Raoult's Law.
B. Henry's Law.
2.If a chloroform-acetone mixture with an chloroform mole
fraction of 0.62 is subjected to fractional distillation, what is
the composition of the distillate?
A. pure chloroform
B. pure azeotrope
C. pure acetone
3. Do chloroform and acetone form an ideal solution?
A. no
B. cannot be determined from the information given
C. yes
4. If a...
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent? A hypotheti...
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent? A hypothetical solution forms between a solid and a liquid. The values of the thermodynamic quantities involved in the process are shown in the following table. Action Enthalpy separation of solute 11.5 kJ/mol separation of solvent 21.8 kJ/mol formation of solute-solvent interactions -86.7 kJ/mol solute...
Explain2 The vapor pressure of a solution containing 73.6 g glycerin (C_3H_8O_3, Molar mass 92.094) in...
Explain2
The vapor pressure of a solution containing 73.6 g glycerin (C_3H_8O_3, Molar mass 92.094) in 120.7 g of ethanol (C_2H_5OH, Molar mass = 46.068) is 169.3 torr at 50.0 degree C Calculate the vapor pressure of pure ethanol at 40.0 degree C assuming that glycerin is a nonvolatile, nonelectrolyte solute in ethanol.
The plot here shows the vapor pressure of a solution that
exhibits
ideal behavior
solute-solvent interactions that are about as strong as
solute-solute and solvent-solvent interactions.
weak solute-solvent interactions.
strong solute-solvent interactions
Vapor pressure of solution 0.0 0.2 0.4 0.6 0.8 1.0 XA
1. As the mole fraction of chloroform approaches 1, the vapor
pressure of acetone could be calculated using
A. Raoult's Law.
B. Henry's Law.
2.If a chloroform-acetone mixture with an chloroform mole
fraction of 0.62 is subjected to fractional distillation, what is
the composition of the distillate?
A. pure chloroform
B. pure azeotrope
C. pure acetone
3. Do chloroform and acetone form an ideal solution?
A. no
B. cannot be determined from the information given
C. yes
4. If a...
Explain2
The vapor pressure of a solution containing 73.6 g glycerin (C_3H_8O_3, Molar mass 92.094) in 120.7 g of ethanol (C_2H_5OH, Molar mass = 46.068) is 169.3 torr at 50.0 degree C Calculate the vapor pressure of pure ethanol at 40.0 degree C assuming that glycerin is a nonvolatile, nonelectrolyte solute in ethanol.
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