Question 1

Which of the following terms can be used to quantitatively describe the concentration of a solution?

Accepted Answer

A)  parts per million 
B)  percent concentration 
C)  molarity 
D)  all of these 
A)  parts per million 
B)  percent concentration 
C)  molarity 
D)  all of these

Question 2

A 750-mL bottle of vodka is labeled as 60 proof. What is its alcohol content?

Accepted Answer

A)  113.0 mL 
B)  225.0 mL 
C)  450.0 mL 
D)  600.0 mL 
A)  113.0 mL 
B)  225.0 mL 
C)  450.0 mL 
D)  600.0 mL

Question 3

Which of the following is true of electrodes?

Accepted Answer

A)  The anode is the negative electrode. 
B)  The cathode is the positive electrode. 
C)  The anode is the negative electrode and the cathode is the positive electrode. 
D)  None of these are true. 
A)  The anode is the negative electrode. 
B)  The cathode is the positive electrode. 
C)  The anode is the negative electrode and the cathode is the positive electrode. 
D)  None of these are true.

Question 4

Which of the following is equivalent to the unit 1 ppm?

Accepted Answer

A)  1000 ppb 
B)  0.0001%(w/w) 
C)  both 1000 ppb and 0.0001%(w/w) 
D)  neither 1000 ppb or 0.0001%(w/w) 
A)  1000 ppb 
B)  0.0001%(w/w) 
C)  both 1000 ppb and 0.0001%(w/w) 
D)  neither 1000 ppb or 0.0001%(w/w)

Question 5

Which of the following aqueous solutions of Na2SO4 is hypotonic with a 0.15 M NaCl solution?

Accepted Answer

A)  0.05 M 
B)  0.10 M 
C)  0.15 M 
D)  none of these 
A)  0.05 M 
B)  0.10 M 
C)  0.15 M 
D)  none of these

Question 6

Consider the following image of a separatory funnel. Which of the following correctly describes the contents of the funnel?

Accepted Answer

A)  Both liquids are nonpolar. 
B)  Both liquids are polar. 
C)  One liquid is polar, and the other liquid is nonpolar. 
D)  It is impossible to determine the liquids' polarities from the given data. 
A)  Both liquids are nonpolar. 
B)  Both liquids are polar. 
C)  One liquid is polar, and the other liquid is nonpolar. 
D)  It is impossible to determine the liquids' polarities from the given data.

Question 7

Which ions among Cl-, Na+, NH4+, and NO3- will move toward an anode?

Accepted Answer

A)  only the chloride ions 
B)  only the sodium ions 
C)  both the chloride and nitrate ions 
D)  both the sodium and ammonium ions 
A)  only the chloride ions 
B)  only the sodium ions 
C)  both the chloride and nitrate ions 
D)  both the sodium and ammonium ions

Question 8

A solution is prepared by dissolving 53.5 grams of ammonium chloride, NH4Cl, in 4000.0 grams of water. What is the boiling point of the solution? (The boiling point elevation constant for water is 0.512°C/mole solute in 1000 g of water.)

Accepted Answer

A)  100.13°C 
B)  100.26°C 
C)  100.39°C 
D)  100.52°C 
A)  100.13°C 
B)  100.26°C 
C)  100.39°C 
D)  100.52°C

Question 9

Which of the following occurs when red blood cells are placed in an isotonic solution?

Accepted Answer

A)  crenation 
B)  hemolysis 
C)  reverse osmosis 
D)  none of these 
A)  crenation 
B)  hemolysis 
C)  reverse osmosis 
D)  none of these

Question 10

Which of the following solutions of glucose, C6H12O6, is isotonic with a 0.15 M NaCl solution?

Accepted Answer

A)  0.15% 
B)  0.55% 
C)  1.5% 
D)  5.5% 
A)  0.15% 
B)  0.55% 
C)  1.5% 
D)  5.5%

Question 11

Which of the following aqueous solutions of Na2SO4 is isotonic with a 0.15 M NaCl solution?

Accepted Answer

A)  0.05 M 
B)  0.10 M 
C)  0.15 M 
D)  none of these 
A)  0.05 M 
B)  0.10 M 
C)  0.15 M 
D)  none of these

Question 12

Which of the following is true of colligative properties?

Accepted Answer

A)  They depend only on the number of solute particles. 
B)  They depend on the nature of the solute particles. 
C)  They depend only on the number of solvent particles. 
D)  They depend on the nature of the solvent particles. 
A)  They depend only on the number of solute particles. 
B)  They depend on the nature of the solute particles. 
C)  They depend only on the number of solvent particles. 
D)  They depend on the nature of the solvent particles.

Question 13

The concentration of lead in a water sample is found to be 3 ppb. To which of the following is this equivalent?

Accepted Answer

A)  0.003 mg lead per 1 kg of water 
B)  0.03 mg lead per 1 kg of water 
C)  0.3 mg lead per 1 kg of water 
D)  3.0 mg lead per 1 kg of water 
A)  0.003 mg lead per 1 kg of water 
B)  0.03 mg lead per 1 kg of water 
C)  0.3 mg lead per 1 kg of water 
D)  3.0 mg lead per 1 kg of water

Question 14

Which term is used to refer to the liquid component of a solid-in-liquid solution?

Accepted Answer

A)  concentrate 
B)  dissolver 
C)  solute 
D)  solvent 
A)  concentrate 
B)  dissolver 
C)  solute 
D)  solvent

Question 15

A chemist has a sample that is known to be a solution. Which of the following processes can be used to separate the components of the solution?

Accepted Answer

A)  chromatography 
B)  filtration 
C)  either chromatography or filtration 
D)  neither chromatography or filtration 
A)  chromatography 
B)  filtration 
C)  either chromatography or filtration 
D)  neither chromatography or filtration

Question 16

Which of the following is associated with the desalinization of water?

Accepted Answer

A)  crenation 
B)  hemolysis 
C)  reverse osmosis 
D)  none of these 
A)  crenation 
B)  hemolysis 
C)  reverse osmosis 
D)  none of these

Question 17

What is the mass of glycine in a 400-g sample of a solution that is 2.5%(w/w)?

Accepted Answer

A)  1.0 g 
B)  2.5 g 
C)  10.0 g 
D)  25.0 g 
A)  1.0 g 
B)  2.5 g 
C)  10.0 g 
D)  25.0 g

Question 18

Which of the following concentration units will not change if a solution is heated?

Accepted Answer

A)  %(w/w) 
B)  %(w/v) 
C)  both %(w/w) and %(w/v) 
D)  neither %(w/w) or %(w/v) 
A)  %(w/w) 
B)  %(w/v) 
C)  both %(w/w) and %(w/v) 
D)  neither %(w/w) or %(w/v)

Question 19

A solution is prepared by dissolving 215 grams of methanol, CH3OH, in 1000.0 grams of water. What is the boiling point of the solution? (The boiling point elevation constant for water is 0.512°C/mole solute in 1000 g of water.)

Accepted Answer

A)  93.0°C 
B)  96.5°C 
C)  103.5°C 
D)  107.0°C 
A)  93.0°C 
B)  96.5°C 
C)  103.5°C 
D)  107.0°C

Question 20

If we wish to prepare 250.0 mL of 0.200 M BaCl2 solution, how much of solid BaCl2 is needed?

Accepted Answer

A)  4.17 g 
B)  5.21 g 
C)  10.4 g 
D)  20.8 g 
A)  4.17 g 
B)  5.21 g 
C)  10.4 g 
D)  20.8 g

Exam 6: Solutions and Colloids

Which of the following terms can be used to quantitatively describe the concentration of a solution?

A 750-mL bottle of vodka is labeled as 60 proof. What is its alcohol content?

Which of the following is true of electrodes?

Which of the following is equivalent to the unit 1 ppm?

Which of the following aqueous solutions of Na2SO4 is hypotonic with a 0.15 M NaCl solution?

Consider the following image of a separatory funnel. Which of the following correctly describes the contents of the funnel?

Which ions among Cl-, Na+, NH4+, and NO3- will move toward an anode?

A solution is prepared by dissolving 53.5 grams of ammonium chloride, NH4Cl, in 4000.0 grams of water. What is the boiling point of the solution? (The boiling point elevation constant for water is 0.512°C/mole solute in 1000 g of water.)

Which of the following occurs when red blood cells are placed in an isotonic solution?

Which of the following solutions of glucose, C6H12O6, is isotonic with a 0.15 M NaCl solution?

Which of the following aqueous solutions of Na2SO4 is isotonic with a 0.15 M NaCl solution?

Which of the following is true of colligative properties?

The concentration of lead in a water sample is found to be 3 ppb. To which of the following is this equivalent?

Which term is used to refer to the liquid component of a solid-in-liquid solution?

A chemist has a sample that is known to be a solution. Which of the following processes can be used to separate the components of the solution?

Which of the following is associated with the desalinization of water?

What is the mass of glycine in a 400-g sample of a solution that is 2.5%(w/w)?

Which of the following concentration units will not change if a solution is heated?

A solution is prepared by dissolving 215 grams of methanol, CH3OH, in 1000.0 grams of water. What is the boiling point of the solution? (The boiling point elevation constant for water is 0.512°C/mole solute in 1000 g of water.)

If we wish to prepare 250.0 mL of 0.200 M BaCl2 solution, how much of solid BaCl2 is needed?

Matter, Energy, and Measurement

Atoms

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Reaction Rates and Chemical Equilibrium

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

Immunochemistry

Body Fluids

Filters

Which of the following aqueous solutions of Na₂SO₄ is hypotonic with a 0.15 M NaCl solution?

Which ions among Cl^-, Na⁺, NH₄⁺, and NO₃^- will move toward an anode?

A solution is prepared by dissolving 53.5 grams of ammonium chloride, NH₄Cl, in 4000.0 grams of water. What is the boiling point of the solution? (The boiling point elevation constant for water is 0.512°C/mole solute in 1000 g of water.)

Which of the following solutions of glucose, C₆H₁₂O₆, is isotonic with a 0.15 M NaCl solution?

Which of the following aqueous solutions of Na₂SO₄ is isotonic with a 0.15 M NaCl solution?

A solution is prepared by dissolving 215 grams of methanol, CH₃OH, in 1000.0 grams of water. What is the boiling point of the solution? (The boiling point elevation constant for water is 0.512°C/mole solute in 1000 g of water.)

If we wish to prepare 250.0 mL of 0.200 M BaCl₂ solution, how much of solid BaCl₂ is needed?