A solution is 40.00% by volume benzene (C6H6)in carbon tetrachloride at 20°C.The vapor pressure of pure benzene at this temperature is 74.61 mmHg and its density is 0.87865 g/cm3; the vapor pressure of pure carbon tetrachloride is 91.32 mmHg and its density is 1.5940 g/cm3.If this solution is ideal,its total vapor pressure at 20°C is

A) 84.64 mmHg. B) 84.30 mmHg. C) 82.96 mmHg. D) 81.63 mmHg. E) 165.93 mmHg. A) 84.64 mmHg. B) 84.30 mmHg. C) 82.96 mmHg. D) 81.63 mmHg. E) 165.93 mmHg.

What is the molarity of a 17.0% by mass solution of sodium acetate,NaC2H3O2 (82.0g/mol),in water? The density of the solution is 1.09 g/mL.

A) 0.170 M B) 0.207 M C) 2.07 M D) 2.26 M E) 1.90 M A) 0.170 M B) 0.207 M C) 2.07 M D) 2.26 M E) 1.90 M

What mass of water is required to dissolve 27.8 g of ammonium nitrate NH4NO3 in order to prepare a 0.452 m solution?

A) 0.0615 kg B) 0.100 kg C) 0.177 kg D) 0.768 kg E) 1.30 kg A) 0.0615 kg B) 0.100 kg C) 0.177 kg D) 0.768 kg E) 1.30 kg

What is the osmotic pressure of a solution that contains 13.7 g of propyl alcohol (C3H7OH)dissolved in enough water to make 500.mL of solution at 27°C? (R = 0.08206 L • atm/K • mol)

A) 9.7 atm B) 33.7 atm C) 0.4 atm D) 5.6 atm E) 11.2 atm A) 9.7 atm B) 33.7 atm C) 0.4 atm D) 5.6 atm E) 11.2 atm

Exam 13: Physical Properties of Solutions

At 10°C one volume of water dissolves 3.10 volumes of chlorine gas at 1.00 atm pressure.What is the Henry's law constant of Cl₂ in water? (R = 0.0821 atm • L • mol^-1• K^-1 )

(Multiple Choice)

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Question 81

A solution containing 0.102 g of an unknown compound dissolved in 100.mL of water has an osmotic pressure of 28.1 mmHg at 20.°C.What is the molar mass of the compound? (R = 0.08206 L • atm/K • mol,1 atm = 760 mmHg)

(Multiple Choice)

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Question 82

A solution that contains 55.0 g of ascorbic acid (vitamin C)in 250.g of water freezes at -2.34°C.Calculate the molar mass (in units of g/mol)of the solute. (For water,K_f = 1.86°C/m)

(Multiple Choice)

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Question 83

Which of these compounds is a strong electrolyte?

(Multiple Choice)

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Question 84

A solution is 40.00% by volume benzene (C₆H₆)in carbon tetrachloride at 20°C.The vapor pressure of pure benzene at this temperature is 74.61 mmHg and its density is 0.87865 g/cm³; the vapor pressure of pure carbon tetrachloride is 91.32 mmHg and its density is 1.5940 g/cm³.If this solution is ideal,its total vapor pressure at 20°C is

(Multiple Choice)

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Question 85

What is the molarity of a 17.0% by mass solution of sodium acetate,NaC₂H₃O₂ (82.0g/mol),in water? The density of the solution is 1.09 g/mL.

(Multiple Choice)

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Question 86

______________ is the term used for a water loving substance.

(Short Answer)

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Question 87

What is the name given to a solution that contains more solute than it has the capacity to dissolve?

(Multiple Choice)

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Question 88

In the following diagrams,the black circles represent a solute in solution.Which diagram represents a saturated solution?

(Multiple Choice)

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Question 89

Which is defined as the maximum amount of solute that will dissolve in a given quantity of solvent at a specific temperature?

(Multiple Choice)

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Question 90

What mass of water is required to dissolve 27.8 g of ammonium nitrate NH₄NO₃ in order to prepare a 0.452 m solution?

(Multiple Choice)

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Question 91

Which is true regarding the solvation of a solute in a solvent?

(Multiple Choice)

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Question 92

The solubility of nitrogen gas in water at 25°C and a nitrogen pressure of 522 mmHg is 4.7 × 10^-4 mol/L.What is the value of the Henry's law constant in mol L^-1• atm^-1?

(Multiple Choice)

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Question 93

What is the osmotic pressure of a solution that contains 13.7 g of propyl alcohol (C₃H₇OH)dissolved in enough water to make 500.mL of solution at 27°C? (R = 0.08206 L • atm/K • mol)

(Multiple Choice)

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Question 94

An "ideal solution" is a solution that obeys Raoult's law.

(True/False)

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Question 95

Which is immiscible with water?

(Multiple Choice)

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Question 96

Which of the following is not a colligative property?

(Multiple Choice)

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Question 97

What is defined as the selective passage of solvent molecules through a porous membrane from a more dilute solution to a more concentrated solution?

(Multiple Choice)

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Question 98

When 12.1 g of the sugar sucrose (a nonelectrolyte)are dissolved in exactly 800 g of water,the solution has a freezing point of -0.082°C.What is the molar mass of sucrose? (K_f of water is 1.86°C/m.)

(Multiple Choice)

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Question 99

The mole fraction of potassium nitrate in an aqueous solution is 0.0194.The solution's density is 1.0627 g/mL.What is the molarity of KNO₃ in the solution?

(Multiple Choice)

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Question 100

Showing 81 - 100 of 147

Exam 13: Physical Properties of Solutions

At 10°C one volume of water dissolves 3.10 volumes of chlorine gas at 1.00 atm pressure.What is the Henry's law constant of Cl2 in water? (R = 0.0821 atm • L • mol-1• K-1 )

A solution containing 0.102 g of an unknown compound dissolved in 100.mL of water has an osmotic pressure of 28.1 mmHg at 20.°C.What is the molar mass of the compound? (R = 0.08206 L • atm/K • mol,1 atm = 760 mmHg)

A solution that contains 55.0 g of ascorbic acid (vitamin C)in 250.g of water freezes at -2.34°C.Calculate the molar mass (in units of g/mol)of the solute. (For water,Kf = 1.86°C/m)

Which of these compounds is a strong electrolyte?

What is the molarity of a 17.0% by mass solution of sodium acetate,NaC2H3O2 (82.0g/mol),in water? The density of the solution is 1.09 g/mL.

______________ is the term used for a water loving substance.

What is the name given to a solution that contains more solute than it has the capacity to dissolve?

In the following diagrams,the black circles represent a solute in solution.Which diagram represents a saturated solution?

Which is defined as the maximum amount of solute that will dissolve in a given quantity of solvent at a specific temperature?

What mass of water is required to dissolve 27.8 g of ammonium nitrate NH4NO3 in order to prepare a 0.452 m solution?

Which is true regarding the solvation of a solute in a solvent?

The solubility of nitrogen gas in water at 25°C and a nitrogen pressure of 522 mmHg is 4.7 × 10-4 mol/L.What is the value of the Henry's law constant in mol L-1• atm-1?

What is the osmotic pressure of a solution that contains 13.7 g of propyl alcohol (C3H7OH)dissolved in enough water to make 500.mL of solution at 27°C? (R = 0.08206 L • atm/K • mol)

An "ideal solution" is a solution that obeys Raoult's law.

Which is immiscible with water?

Which of the following is not a colligative property?

What is defined as the selective passage of solvent molecules through a porous membrane from a more dilute solution to a more concentrated solution?

When 12.1 g of the sugar sucrose (a nonelectrolyte)are dissolved in exactly 800 g of water,the solution has a freezing point of -0.082°C.What is the molar mass of sucrose? (Kf of water is 1.86°C/m.)

The mole fraction of potassium nitrate in an aqueous solution is 0.0194.The solution's density is 1.0627 g/mL.What is the molarity of KNO3 in the solution?

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At 10°C one volume of water dissolves 3.10 volumes of chlorine gas at 1.00 atm pressure.What is the Henry's law constant of Cl₂ in water? (R = 0.0821 atm • L • mol^-1• K^-1 )

A solution that contains 55.0 g of ascorbic acid (vitamin C)in 250.g of water freezes at -2.34°C.Calculate the molar mass (in units of g/mol)of the solute. (For water,K_f = 1.86°C/m)

What is the molarity of a 17.0% by mass solution of sodium acetate,NaC₂H₃O₂ (82.0g/mol),in water? The density of the solution is 1.09 g/mL.

What mass of water is required to dissolve 27.8 g of ammonium nitrate NH₄NO₃ in order to prepare a 0.452 m solution?

The solubility of nitrogen gas in water at 25°C and a nitrogen pressure of 522 mmHg is 4.7 × 10^-4 mol/L.What is the value of the Henry's law constant in mol L^-1• atm^-1?

What is the osmotic pressure of a solution that contains 13.7 g of propyl alcohol (C₃H₇OH)dissolved in enough water to make 500.mL of solution at 27°C? (R = 0.08206 L • atm/K • mol)

When 12.1 g of the sugar sucrose (a nonelectrolyte)are dissolved in exactly 800 g of water,the solution has a freezing point of -0.082°C.What is the molar mass of sucrose? (K_f of water is 1.86°C/m.)

The mole fraction of potassium nitrate in an aqueous solution is 0.0194.The solution's density is 1.0627 g/mL.What is the molarity of KNO₃ in the solution?