Question 1

The ionic compound CaCO3 is soluble in water.

Accepted Answer

A) True 
 B)False

Question 2

Which is not an example of a solution?

Accepted Answer

A) A dental filling 
B) Chicken noodle soup 
C) Gasoline 
D) Tap water 
A) A dental filling 
B) Chicken noodle soup 
C) Gasoline 
D) Tap water

Question 3

Only solids dissolve in water to form solutions.

Accepted Answer

A) True 
 B)False

Question 4

The boiling point of a solution that contains 0.64 mol of Mg(NO3)2 in 1.00 kg of water is 100.98 °C.

Accepted Answer

A) True 
 B)False

Question 5

The presence of a solute reduces the vapor pressure of the solvent above the solution,raising its boiling point.

Accepted Answer

A) True 
 B)False

Question 6

A saline solution used in intravenous drips for patients who cannot take oral fluids contains 0.92% (w/v)NaCl in water. What volume of the saline solution must be administered to the patient in order to deliver 7.7 g of NaCl?

Accepted Answer

A) 8.4 mL of saline solution 
B) 840 mL of saline solution 
C) 7.1 mL of saline solution 
D) 140 mL of saline solution 
A) 8.4 mL of saline solution 
B) 840 mL of saline solution 
C) 7.1 mL of saline solution 
D) 140 mL of saline solution

Question 7

How many grams of glucose (C6H12O6)are contained in 555 mL of a 1.77 M glucose solution?

Accepted Answer

A) 0.982 g C6H12O6 
B) 177 g C6H12O6 
C) 0.555 g C6H12O6 
D) 0.177 g C6H12O6 
A) 0.982 g C6H12O6 
B) 177 g C6H12O6 
C) 0.555 g C6H12O6 
D) 0.177 g C6H12O6

Question 8

Methanol (CH3OH)is soluble in water.

Accepted Answer

A) True 
 B)False

Question 9

________ is the passage of water and small molecules across a semipermeable membrane from a solution of low solute concentration to a solution of higher solute concentration.

Accepted Answer

The answer of ________ is the passage of water and...

Question 10

Magnesium hydroxide can be made by the reaction shown below. If a chemist requires 0.725 moles of NaOH for this reaction,what volume of a 1.50 M NaOH solution is needed to provide this amount? MgCl2(aq)+ 2 NaOH(aq)→ Mg(OH)2(s)+ 2 NaCl(aq)

Accepted Answer

A) 0.483 L of a 1.50 M NaOH solution 
B) 0.967 L of a 1.50 M NaOH solution 
C) 1.09 L of a 1.50 M NaOH solution 
D) 967 mL of a 1.50 M NaOH solution 
A) 0.483 L of a 1.50 M NaOH solution 
B) 0.967 L of a 1.50 M NaOH solution 
C) 1.09 L of a 1.50 M NaOH solution 
D) 967 mL of a 1.50 M NaOH solution

Question 11

Which of the following would increase the solubility of solid NaCl in water ________.

Accepted Answer

A) decreasing the temperature of the solution 
B) increasing the temperature of the solution 
C) decreasing the pressure of the solution 
D) increasing the pressure of the solution 
A) decreasing the temperature of the solution 
B) increasing the temperature of the solution 
C) decreasing the pressure of the solution 
D) increasing the pressure of the solution

Question 12

An unknown amount of water is added to 75 mL of a 3.5 M aqueous glucose solution. What can be said about the concentration of the resulting solution?

Accepted Answer

A) The concentration of the resultant glucose solution will be less than 3.5 M. 
B) The concentration of the resultant glucose solution will be greater than 3.5 M. 
C) The concentration of the resultant glucose solution will remain the same because the amount of glucose has not changed. 
D) It is impossible to say anything about the concentration of the resultant glucose solution because the amount of added water has not been provided. 
A) The concentration of the resultant glucose solution will be less than 3.5 M. 
B) The concentration of the resultant glucose solution will be greater than 3.5 M. 
C) The concentration of the resultant glucose solution will remain the same because the amount of glucose has not changed. 
D) It is impossible to say anything about the concentration of the resultant glucose solution because the amount of added water has not been provided.

Question 13

The solubility of KI in water at 20 °C is 140 g KI/100 g H2O. If 160 g of KI is mixed with 150 g of water,all of the KI will dissolve and the solution that results will be unsaturated.

Accepted Answer

A) True 
 B)False

Question 14

The solubility of Ba(NO3)2 in water is lower at 25 °C than at 50 °C.

Accepted Answer

A) True 
 B)False

Question 15

Which pair of compounds will form a solution?

Accepted Answer

A) Benzene (C6H6)and hexane (C6H14) 
B) Na2SO4 and benzene (C6H6) 
C) NaCl and hexane (C6H14) 
D) H2O and CCl4 
E) More than one of the combinations above will form solutions. 
A) Benzene (C6H6)and hexane (C6H14) 
B) Na2SO4 and benzene (C6H6) 
C) NaCl and hexane (C6H14) 
D) H2O and CCl4 
E) More than one of the combinations above will form solutions.

Question 16

Solubility is often summed up in three words: "________".

Accepted Answer

The answer of Solubility is often summed up in three...

Question 17

Which solution has the highest boiling point?

Accepted Answer

A) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water. 
B) A solution formed by dissolving 0.75 mol of glucose (C6H12O6)in 1.00 kg of water. 
C) A solution formed by dissolving 0.75 mol of Ca(NO3)2 in 1.00 kg of water. 
D) A solution formed by dissolving 0.75 mol of Na3PO4 in 1.00 kg of water. 
E) All of the solutions described have the same boiling point. 
A) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water. 
B) A solution formed by dissolving 0.75 mol of glucose (C6H12O6)in 1.00 kg of water. 
C) A solution formed by dissolving 0.75 mol of Ca(NO3)2 in 1.00 kg of water. 
D) A solution formed by dissolving 0.75 mol of Na3PO4 in 1.00 kg of water. 
E) All of the solutions described have the same boiling point.

Question 18

The maximum level of lead allowed in drinking water is 15 mg/kg. What is this concentration in units of parts per million?

Accepted Answer

A) 15 ppm 
B) 1.5 × 10-2 ppm 
C) 1.5 × 104 ppm 
D) 3.1 ppm 
A) 15 ppm 
B) 1.5 × 10-2 ppm 
C) 1.5 × 104 ppm 
D) 3.1 ppm

Question 19

Ethylene glycol is more soluble in water than propane.

Accepted Answer

A) True 
 B)False

Question 20

The melting point of a solution prepared from 2.00 moles of NaCl in 1.00kg of water is ______ºC.

Accepted Answer

The answer of The melting point of a solution prepared...

Exam 8: Solutions

The ionic compound CaCO3 is soluble in water.

Which is not an example of a solution?

Only solids dissolve in water to form solutions.

The boiling point of a solution that contains 0.64 mol of Mg(NO3)2 in 1.00 kg of water is 100.98 °C.

The presence of a solute reduces the vapor pressure of the solvent above the solution,raising its boiling point.

A saline solution used in intravenous drips for patients who cannot take oral fluids contains 0.92% (w/v)NaCl in water. What volume of the saline solution must be administered to the patient in order to deliver 7.7 g of NaCl?

How many grams of glucose (C6H12O6)are contained in 555 mL of a 1.77 M glucose solution?

Methanol (CH3OH)is soluble in water.

________ is the passage of water and small molecules across a semipermeable membrane from a solution of low solute concentration to a solution of higher solute concentration.

Magnesium hydroxide can be made by the reaction shown below. If a chemist requires 0.725 moles of NaOH for this reaction,what volume of a 1.50 M NaOH solution is needed to provide this amount? MgCl2(aq)+ 2 NaOH(aq)→ Mg(OH)2(s)+ 2 NaCl(aq)

Which of the following would increase the solubility of solid NaCl in water ________.

An unknown amount of water is added to 75 mL of a 3.5 M aqueous glucose solution. What can be said about the concentration of the resulting solution?

The solubility of KI in water at 20 °C is 140 g KI/100 g H2O. If 160 g of KI is mixed with 150 g of water,all of the KI will dissolve and the solution that results will be unsaturated.

The solubility of Ba(NO3)2 in water is lower at 25 °C than at 50 °C.

Which pair of compounds will form a solution?

Solubility is often summed up in three words: "________".

Which solution has the highest boiling point?

The maximum level of lead allowed in drinking water is 15 mg/kg. What is this concentration in units of parts per million?

Ethylene glycol is more soluble in water than propane.

The melting point of a solution prepared from 2.00 moles of NaCl in 1.00kg of water is ______ºC.

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes,reaction Rates,and Equilibrium

Gases,liquids,and Solids

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen,halogen,or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids,esters,and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids,proteins,and Enzymes

Nucleic Acids and Protein Synthesis

Metabolism and Energy Production

Carbohydrate,lipid,and Protein Metabolism

Filters

The ionic compound CaCO₃ is soluble in water.

The boiling point of a solution that contains 0.64 mol of Mg(NO₃)₂ in 1.00 kg of water is 100.98 °C.

How many grams of glucose (C₆H₁₂O₆)are contained in 555 mL of a 1.77 M glucose solution?

Methanol (CH₃OH)is soluble in water.

Magnesium hydroxide can be made by the reaction shown below. If a chemist requires 0.725 moles of NaOH for this reaction,what volume of a 1.50 M NaOH solution is needed to provide this amount? MgCl₂(aq)+ 2 NaOH(aq)→ Mg(OH)₂(s)+ 2 NaCl(aq)

The solubility of KI in water at 20 °C is 140 g KI/100 g H₂O. If 160 g of KI is mixed with 150 g of water,all of the KI will dissolve and the solution that results will be unsaturated.

The solubility of Ba(NO₃)₂ in water is lower at 25 °C than at 50 °C.