a) Describe the condition for the formation of a solution in terms of strength of interactions...
a) Describe the condition for the formation of a solution in terms of strength of interactions between the molecules of solute and solvent.
b) How does the vapor pressure of a solution change in comparison with the one for the pure solvent? Give 2 reasons why.
c) List 2 colligative properties and mention if they are higher or lower in the solution compared with the pure solvent.
Homework Answers
Add Answer to:
a) Describe the condition for the formation of a solution in
terms of strength of interactions...
QUESTION 4 If you take a 171 mL of a 1.4 M NaCl solution and dilute...
QUESTION 4
If you take a 171 mL of a 1.4 M NaCl solution and dilute it to
500 mL, what is the molarity of the final solution?
Enter the numerical answer in decimal notation
QUESTION 10
Information - Colligative
Properties
Colligative properties of solutions are those properties which
depend only on the number of dissolved solute particles in solution
not the chemical properties of the solute. For example when a
solute is dissolved in a solvent, vapor pressure
depression...
Am I right ? if not please explain why Indicate whether the following statements are true...
Am I right ? if not please explain why
Indicate whether the following statements are true or false. Colligative properties are dependent on the mass of the solute false Colligative properties are dependent on the volume of solvent. true ? The vapor pressure of the solution will always be higher then the VP of the pure solvent. false Boiling point elevation is a measure of the increase in boiling point of a pure solvent when compared to a solution. true...
Which of the following regarding colligative properties of a solution is NOT correct? a. The temperature...
Which of the following regarding colligative properties of a solution is NOT correct? a. The temperature range over which a solution remains liquid is larger than that of the pure solvent due to the presence of solute particles. Cb. Vapor pressure reduction is a colligative property. c. Colligative properties depend on the concentration of the particles dissolved in the solvent. Cd. The freezing point of a solution increases as the concentration of solute increases. e. The change in the boiling...
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...
What is the relationship between the moles of solute and the mass of solute? Rewrite the molality expression in terms o...
What is the relationship between the moles of solute and the
mass of solute?
Rewrite the molality expression in terms of grams and molecular
weight.
Background:
Properties that depend on the concentration of particles in solution are called colligative properties. The number of particles in a solvent can affect the freezing or boiling point of solvent. To express the effect of concentration on freezing point or boiling point, molality is used in place of molarity. Molality (m) is the number...
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor...
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...
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...
massa volum volum mo olu 5. In which of the following solvents would you expect KBr...
massa volum volum mo olu 5. In which of the following solvents would you expect KBr to be most soluble? a) CH4 (hexane) d) CCM (carbon tetrachloride) b) CH CH OH (ethanol) e) C.Hz (cyclohexane) c) CH. (benzene) ___6. A 9.50 % by mass solution of acetone (C,H,O) in water has a density of 0.9849 g/mL at 20°C. What is the molarity of this solution? a) 0.621 M b) 1.61 Me) 1.66 Md ) 1.71 M e ) 16.9 M...
QUESTION 9 14 pe that only depend on the Colligative properties refer to properties of of but not on their (For thi...
QUESTION 9 14 pe that only depend on the Colligative properties refer to properties of of but not on their (For this sentence enter: increase & decrease) When a nonvolatile solute is dissolved in water it wil the the freezing point of this solution with respect to pure water. boiling point and Osmosis is a phenomenon that can be observed when two aqueous solutions of different are in contact membrane. If only water molecules can pass through this membrane, but...
What would be the purpose of this lab based on the following information? Colligative Properties II...
What would be the purpose of this lab based on the following information? Colligative Properties II Colligative Property is a property of a solution that depends only on the number of solute molecule present. Osmotic pressure, freezing point depression, boiling point elevation, and vapor pressure lowering are all colligative properties. In today’s lab we will look at three of these properties. Electrolytes are substances that forms ions in solution that conduct electricity. Electrolytes can either be an acid, base or...
QUESTION 4
If you take a 171 mL of a 1.4 M NaCl solution and dilute it to
500 mL, what is the molarity of the final solution?
Enter the numerical answer in decimal notation
QUESTION 10
Information - Colligative
Properties
Colligative properties of solutions are those properties which
depend only on the number of dissolved solute particles in solution
not the chemical properties of the solute. For example when a
solute is dissolved in a solvent, vapor pressure
depression...
Am I right ? if not please explain why
Indicate whether the following statements are true or false. Colligative properties are dependent on the mass of the solute false Colligative properties are dependent on the volume of solvent. true ? The vapor pressure of the solution will always be higher then the VP of the pure solvent. false Boiling point elevation is a measure of the increase in boiling point of a pure solvent when compared to a solution. true...
Which of the following regarding colligative properties of a solution is NOT correct? a. The temperature range over which a solution remains liquid is larger than that of the pure solvent due to the presence of solute particles. Cb. Vapor pressure reduction is a colligative property. c. Colligative properties depend on the concentration of the particles dissolved in the solvent. Cd. The freezing point of a solution increases as the concentration of solute increases. e. The change in the boiling...
What is the relationship between the moles of solute and the
mass of solute?
Rewrite the molality expression in terms of grams and molecular
weight.
Background:
Properties that depend on the concentration of particles in solution are called colligative properties. The number of particles in a solvent can affect the freezing or boiling point of solvent. To express the effect of concentration on freezing point or boiling point, molality is used in place of molarity. Molality (m) is the number...
massa volum volum mo olu 5. In which of the following solvents would you expect KBr to be most soluble? a) CH4 (hexane) d) CCM (carbon tetrachloride) b) CH CH OH (ethanol) e) C.Hz (cyclohexane) c) CH. (benzene) ___6. A 9.50 % by mass solution of acetone (C,H,O) in water has a density of 0.9849 g/mL at 20°C. What is the molarity of this solution? a) 0.621 M b) 1.61 Me) 1.66 Md ) 1.71 M e ) 16.9 M...
QUESTION 9 14 pe that only depend on the Colligative properties refer to properties of of but not on their (For this sentence enter: increase & decrease) When a nonvolatile solute is dissolved in water it wil the the freezing point of this solution with respect to pure water. boiling point and Osmosis is a phenomenon that can be observed when two aqueous solutions of different are in contact membrane. If only water molecules can pass through this membrane, but...
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