Question 1

The interactions that play an important role in the dissolution of a salt in water are
I. ion-dipole
II. hydrogen bonding
III. dipole-dipole
IV. ion-ion

Accepted Answer

A)  I only 
B)  II and I 
C)  I and IV 
D)  II, III, and IV 
E)  I, II and IV 
A)  I only 
B)  II and I 
C)  I and IV 
D)  II, III, and IV 
E)  I, II and IV

Question 2

Classify the following molecules or fragments as hydrophobic or hydrophilic. A line from an atom indicates where a bond would be formed to another fragment.
1. the -CH2SO3- group
2. CH3CH2OH
3 the -CH2(CH2)11CH3 group
4. the -NH3+ group

Accepted Answer

A)  1; hydrophilic: 2; hydrophilic: 3; hydrophilic: 4; hydrophobic 
B)  1; hydrophilic: 2; hydrophobic: 3; hydrophilic: 4; hydrophobic 
C)  1; hydrophilic: 2; hydrophilic: 3; hydrophobic: 4; hydrophilic 
D)  1; hydrophilic: 2; hydrophobic: 3; hydrophilic: 4; hydrophilic 
E)  1; hydrophobic: 2; hydrophilic: 3; hydrophilic: 4; hydrophilic 
A)  1; hydrophilic: 2; hydrophilic: 3; hydrophilic: 4; hydrophobic 
B)  1; hydrophilic: 2; hydrophobic: 3; hydrophilic: 4; hydrophobic 
C)  1; hydrophilic: 2; hydrophilic: 3; hydrophobic: 4; hydrophilic 
D)  1; hydrophilic: 2; hydrophobic: 3; hydrophilic: 4; hydrophilic 
E)  1; hydrophobic: 2; hydrophilic: 3; hydrophilic: 4; hydrophilic

Question 3

What is the molarity of an aqueous solution that is 0.569 m CaCl2 (solution density 1.05 g/ml)?

Accepted Answer

A)  0.569 M 
B)  0.562 M 
C)  0.597 M 
D)  0.507 M 
E)  0.507 m 
A)  0.569 M 
B)  0.562 M 
C)  0.597 M 
D)  0.507 M 
E)  0.507 m

Question 4

What is the molarity of a solution made from mixing 34 grams of CaCl2 with enough water to make 150 ml of solution?

Accepted Answer

A)  2.04 M 
B)  1.02 M 
C)  3.60 M 
D)  0.20 M 
E)  0.34 M 
A)  2.04 M 
B)  1.02 M 
C)  3.60 M 
D)  0.20 M 
E)  0.34 M

Question 5

Pesticides are non-polar molecules in general. What needs to be done so that farmers are able to spray aqueous solutions containing pesticides?

Accepted Answer

A)  The solutions need to be heated. 
B)  An emulsifier is added. 
C)  A miscible agent is added. 
D)  The solution is shaken frequently. 
E)  Pesticides will never make a solution with water. 
A)  The solutions need to be heated. 
B)  An emulsifier is added. 
C)  A miscible agent is added. 
D)  The solution is shaken frequently. 
E)  Pesticides will never make a solution with water.

Question 6

Consider a can containing 355 mL of a carbonated soft drink at 0°C under 2.2 atm CO2 pressure. What is the concentration of CO2 in the soda, assuming that KH = 7.8 x 10-2 M/atm?

Accepted Answer

Question 7

The vapour pressure of toluene at 25oC is 3.79 KPa and that of benzene is 12.7 kPa. The vapour above a solution that has mole fraction of benzene = 0.5,

Accepted Answer

A)  has mole fraction toluene in 0.5. 
B)  has mole fraction of toluene less than 0.5. 
C)  has mole fraction of toluene greater than 0.5. 
D)  is pure benzene. 
E)  is pure toluene. 
A)  has mole fraction toluene in 0.5. 
B)  has mole fraction of toluene less than 0.5. 
C)  has mole fraction of toluene greater than 0.5. 
D)  is pure benzene. 
E)  is pure toluene.

Question 8

Which of the following are true solutions: milk, brass, NaCl in water, sugar in water, ink?

Accepted Answer

A)  milk, NaCl in water, sugar in water 
B)  milk, brass, NaCl in water, sugar in water 
C)  NaCl in water, sugar in water, ink 
D)  brass, NaCl in water, sugar in water 
E)  NaCl in water, sugar in water 
A)  milk, NaCl in water, sugar in water 
B)  milk, brass, NaCl in water, sugar in water 
C)  NaCl in water, sugar in water, ink 
D)  brass, NaCl in water, sugar in water 
E)  NaCl in water, sugar in water

Question 9

Which of the following has the substances arranged in order of increasing heat of fusion?

Accepted Answer

The answer of Which of the following has the substances...

Question 10

A solution is made from dissolving 102 grams of potassium carbonate in 100 grams of water. What is the solvent in this solute in the solution and explain.

Accepted Answer

The solvent is water

Question 11

Lysozyme is an enzyme found in tears whose function is to break down bacterial cell walls thus killing the bacteria and protecting the eye from infection. A solution made which contains 0.100 g of lysozyme in 150 g of water ($\rho$ = 1.00 g/mL) at 25°C has an osmotic pressure of 8.9 Torr. What is the molar mass of this enzyme?

Accepted Answer

1.4 x 10<s

Question 12

Understand some aspects of colloidal suspensions and surfactant solutions.

Accepted Answer

A colloidal suspension has properties in

Question 13

The greatest gas solubility for a gas in solution is predicted under what conditions?

Accepted Answer

A)  low T, low P 
B)  low T, high P 
C)  high T, low P 
D)  high T, high P 
E)  Solubility of gases does not depend upon temperature. 
A)  low T, low P 
B)  low T, high P 
C)  high T, low P 
D)  high T, high P 
E)  Solubility of gases does not depend upon temperature.

Question 14

What is the concentration of all ions in a solution that is 0.569 m CaCl2 (solution density 1.05 g/ml)?

Accepted Answer

A)  0.569 M 
B)  0.562M 
C)  1.124 M 
D)  1.686 M 
E)  2.248 M 
A)  0.569 M 
B)  0.562M 
C)  1.124 M 
D)  1.686 M 
E)  2.248 M

Question 15

What is the molality of a solution made from mixing 39 grams of sugar (MM = 180 g/mol) with 310 grams of water?

Accepted Answer

A)  0.70 m 
B)  1.40 m 
C)  0.39 m 
D)  3.10 m 
E)  0.39 M 
A)  0.70 m 
B)  1.40 m 
C)  0.39 m 
D)  3.10 m 
E)  0.39 M

Question 16

Predict the relative solubilities of a solute in various solvents, and explain in terms of intermolecular forces.

Accepted Answer

Substances that dissolve in ea

Question 17

The molecule drawn below is Vitamin B1, thiamine. Would you predict this molecule to be more soluble in water or body fat and explain why?

Accepted Answer

The molecule has a number of groups that

Question 18

Which aqueous solution would be expected to have the highest boiling point?

Accepted Answer

A)  0.10 M NaCl 
B)  0.080 M CaCl2 
C)  0.064 M Fe(NO3)3 
D)  0.081 M Fe(NO3)2 
E)  0.080 M Co(SO4) 
A)  0.10 M NaCl 
B)  0.080 M CaCl2 
C)  0.064 M Fe(NO3)3 
D)  0.081 M Fe(NO3)2 
E)  0.080 M Co(SO4)

Question 19

Draw a molecular picture of a surfactant on a waxed surface, like soapy water on a freshly waxed car.

Accepted Answer

The answer of Draw a molecular picture of a surfactant...

The interactions that play an important role in the dissolution of a salt in water are I. ion-dipole II. hydrogen bonding III. dipole-dipole IV. ion-ion

Classify the following molecules or fragments as hydrophobic or hydrophilic. A line from an atom indicates where a bond would be formed to another fragment. 1. the -CH₂SO₃^- group 2. CH₃CH₂OH 3 the -CH₂(CH₂)₁₁CH₃ group 4. the -NH₃⁺ group

What is the molarity of an aqueous solution that is 0.569 m CaCl₂ (solution density 1.05 g/ml)?

What is the molarity of a solution made from mixing 34 grams of CaCl₂ with enough water to make 150 ml of solution?

Pesticides are non-polar molecules in general. What needs to be done so that farmers are able to spray aqueous solutions containing pesticides?

Consider a can containing 355 mL of a carbonated soft drink at 0°C under 2.2 atm CO₂pressure. What is the concentration of CO₂in the soda, assuming that K_H = 7.8 x 10^-2 M/atm?

The vapour pressure of toluene at 25^oC is 3.79 KPa and that of benzene is 12.7 kPa. The vapour above a solution that has mole fraction of benzene = 0.5,

Which of the following are true solutions: milk, brass, NaCl in water, sugar in water, ink?

Which of the following has the substances arranged in order of increasing heat of fusion?

A solution is made from dissolving 102 grams of potassium carbonate in 100 grams of water. What is the solvent in this solute in the solution and explain.

Understand some aspects of colloidal suspensions and surfactant solutions.

The greatest gas solubility for a gas in solution is predicted under what conditions?

What is the concentration of all ions in a solution that is 0.569 m CaCl₂ (solution density 1.05 g/ml)?

What is the molality of a solution made from mixing 39 grams of sugar (MM = 180 g/mol) with 310 grams of water?

Predict the relative solubilities of a solute in various solvents, and explain in terms of intermolecular forces.

The molecule drawn below is Vitamin B1, thiamine. Would you predict this molecule to be more soluble in water or body fat and explain why?

Which aqueous solution would be expected to have the highest boiling point?

Draw a molecular picture of a surfactant on a waxed surface, like soapy water on a freshly waxed car.

Fundamental Concepts of Chemistry

The Behaviour of Gases

Energy and Its Conservation

Atoms and Light

Atomic Energies and Periodicity

Fundamentals of Chemical Bonding

Theories of Chemical Bonding

Effects of Intermolecular Forces

Organic Chemistrystructure

Organic Chemistryreactions

Spontaneity of Chemical Processes

Kinetics: Mechanisms and Rates of Reactions

Principles of Chemical Equilibrium

Aqueous Acidbase Equilibria

Applications of Aqueous Equilibria

Electron Transfer Reactions

Macromolecules

The Transition Metals

The Main Group Elements

Nuclear Chemistry and Radiochemistry

Filters

Exam 9: Properties of Solutions

The interactions that play an important role in the dissolution of a salt in water are I. ion-dipole II. hydrogen bonding III. dipole-dipole IV. ion-ion

Classify the following molecules or fragments as hydrophobic or hydrophilic. A line from an atom indicates where a bond would be formed to another fragment. 1. the -CH2SO3- group 2. CH3CH2OH 3 the -CH2(CH2)11CH3 group 4. the -NH3+ group

What is the molarity of an aqueous solution that is 0.569 m CaCl2 (solution density 1.05 g/ml)?

What is the molarity of a solution made from mixing 34 grams of CaCl2 with enough water to make 150 ml of solution?

Pesticides are non-polar molecules in general. What needs to be done so that farmers are able to spray aqueous solutions containing pesticides?

Consider a can containing 355 mL of a carbonated soft drink at 0°C under 2.2 atm CO2 pressure. What is the concentration of CO2 in the soda, assuming that KH = 7.8 x 10-2 M/atm?

The vapour pressure of toluene at 25oC is 3.79 KPa and that of benzene is 12.7 kPa. The vapour above a solution that has mole fraction of benzene = 0.5,

Which of the following are true solutions: milk, brass, NaCl in water, sugar in water, ink?

Which of the following has the substances arranged in order of increasing heat of fusion?

A solution is made from dissolving 102 grams of potassium carbonate in 100 grams of water. What is the solvent in this solute in the solution and explain.

Understand some aspects of colloidal suspensions and surfactant solutions.

The greatest gas solubility for a gas in solution is predicted under what conditions?

What is the concentration of all ions in a solution that is 0.569 m CaCl2 (solution density 1.05 g/ml)?

What is the molality of a solution made from mixing 39 grams of sugar (MM = 180 g/mol) with 310 grams of water?

Predict the relative solubilities of a solute in various solvents, and explain in terms of intermolecular forces.

The molecule drawn below is Vitamin B1, thiamine. Would you predict this molecule to be more soluble in water or body fat and explain why?

Which aqueous solution would be expected to have the highest boiling point?

Draw a molecular picture of a surfactant on a waxed surface, like soapy water on a freshly waxed car.

Fundamental Concepts of Chemistry

The Behaviour of Gases

Energy and Its Conservation

Atoms and Light

Atomic Energies and Periodicity

Fundamentals of Chemical Bonding

Theories of Chemical Bonding

Effects of Intermolecular Forces

Organic Chemistrystructure

Organic Chemistryreactions

Spontaneity of Chemical Processes

Kinetics: Mechanisms and Rates of Reactions

Principles of Chemical Equilibrium

Aqueous Acidbase Equilibria

Applications of Aqueous Equilibria

Electron Transfer Reactions

Macromolecules

The Transition Metals

The Main Group Elements

Nuclear Chemistry and Radiochemistry

Filters

Classify the following molecules or fragments as hydrophobic or hydrophilic. A line from an atom indicates where a bond would be formed to another fragment. 1. the -CH₂SO₃^- group 2. CH₃CH₂OH 3 the -CH₂(CH₂)₁₁CH₃ group 4. the -NH₃⁺ group

What is the molarity of an aqueous solution that is 0.569 m CaCl₂ (solution density 1.05 g/ml)?

What is the molarity of a solution made from mixing 34 grams of CaCl₂ with enough water to make 150 ml of solution?

Consider a can containing 355 mL of a carbonated soft drink at 0°C under 2.2 atm CO₂pressure. What is the concentration of CO₂in the soda, assuming that K_H = 7.8 x 10^-2 M/atm?

The vapour pressure of toluene at 25^oC is 3.79 KPa and that of benzene is 12.7 kPa. The vapour above a solution that has mole fraction of benzene = 0.5,

What is the concentration of all ions in a solution that is 0.569 m CaCl₂ (solution density 1.05 g/ml)?