Question 1

The conversion factor for converting from moles of HPO42-- to equivalents is:

Accepted Answer

A) True 
 B)False

Question 2

An oral rehydration solution contains 30 mEq/L of citrate3-, what is the molarity of citrate in this solution?

Accepted Answer

A) 0.09 M 
B) 90 M 
C) 10 M. 
D) 0.01 M 
A) 0.09 M 
B) 90 M 
C) 10 M. 
D) 0.01 M

Question 3

A solution contains 5.75 mg of magnesium ions in 332 mL of solution. What is the concentration of the solution in mEq/L?

Accepted Answer

A) 0.712 mEq/L 
B) 0.473 mEq/L 
C) 1.42 mEq/L. 
D) 34.6 mEq/L 
A) 0.712 mEq/L 
B) 0.473 mEq/L 
C) 1.42 mEq/L. 
D) 34.6 mEq/L

Question 4

Based on the following graph, the solubility of this substance at 80 °C is approximately:

Accepted Answer

A) 25 g/L. 
B) 15 g/L. 
C) 10 g/L 
D) 20 g/L 
A) 25 g/L. 
B) 15 g/L. 
C) 10 g/L 
D) 20 g/L

Question 5

Consider the solutions shown in the containers below.The composition of each solution is given in the image.   
Fill the blank with the appropriate term from the list below.
isotonic
hypotonic
hypertonic
crenation
hemolysis
no change
-A red blood cell is placed in the solution in container B. The cell will undergo ____________________.

Accepted Answer

The answer of Consider the solutions shown in the containers...

Question 6

What is the mass of salt in a 400.0 gram-sample of salt water which is 1.50% (w/w) salt?

Accepted Answer

A) 1.50 g 
B) 2.67 g 
C) 3.00 g 
D) 6.00 g 
A) 1.50 g 
B) 2.67 g 
C) 3.00 g 
D) 6.00 g

Question 7

For the following questions,fill in the blank with one of the following terms as appropriate.
increase
decrease
remains constant
cannot predict
-When a beverage can is opened the pressure of the gas above the liquid will___________ causing the solubility of the gas to ____________.

Accepted Answer

The answer of For the following questions,fill in the blank...

Question 8

The %(v/v) of a solution can be defined as:

Accepted Answer

A) True 
 B)False

Question 9

A stockroom attendant has a 15.0% (w/v) solution of KOH. What volume of this solution should she use if she needs to prepare 20.0 mL of a 10.0% (w/v) solution?

Accepted Answer

A) 6.67 mL 
B) 7.50 mL 
C) 13.3 mL 
D) 15.0 mL 
A) 6.67 mL 
B) 7.50 mL 
C) 13.3 mL 
D) 15.0 mL

Question 10

If 1.00 mol of each of the following solutes is dissolved in 2.00 L of an aqueous solution, which solution contains the largest number of solute particles?

Accepted Answer

A) LiBr 
B) sucrose 
C) Ca(NO3)2 
D) Na3PO4 
A) LiBr 
B) sucrose 
C) Ca(NO3)2 
D) Na3PO4

Question 11

Consider the two containers separated by a semipermeable membrane that allows both glucose and sucrose to pass through.   Answer the following questions as appropriate with: right,left,or no movement.
-Upon standing the water molecules will move in which direction?

Accepted Answer

The answer of Consider the two containers separated by a...

Question 12

There is a 9 M aqueous HCl solution in the stock room, but a 5 M solution is required for an experiment. Doubling the volume of the 9 M sample with water will produce the 5 M solution.

Accepted Answer

A) True 
 B)False

Question 13

Consider the two containers separated by a semipermeable membrane that allows both glucose and sucrose to pass through.   Answer the following questions as appropriate with: right,left,or no movement.
-Calculate the percent concentration (m/v) of a solution prepared by dissolving 6.45 g of glucose in enough water to produce 85.0 mL of solution?

Accepted Answer

The answer of Consider the two containers separated by a...

Question 14

Dialysis and osmosis are used for the same purposes.

Accepted Answer

A) True 
 B)False

Question 15

The concentration of cholesterol in plasma was determined to be 215 mg/dL. The mass of cholesterol in 59.1 mL of this plasma is 127 mg.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following pass through both osmotic and dialysis membranes?

Accepted Answer

A) solvent molecules 
B) large molecules 
C) small molecules that are larger than solvent molecules 
D) both solvent and small molecules 
A) solvent molecules 
B) large molecules 
C) small molecules that are larger than solvent molecules 
D) both solvent and small molecules

Question 17

For a 2.00 M solution, the conversion factor for determining the number of moles of solute in a given volume of solution is:

Accepted Answer

A) True 
 B)False

Question 18

If the seminpermeable membrane has pores too small to allow glucose to pass through, ______________will not occur.

Accepted Answer

The answer of If the seminpermeable membrane has pores too...

Question 19

Based on the following graph, approximately what minimum temperature would be needed to dissolved 20 g of this solute in 1.00 L of water?

Accepted Answer

A) 9C 
B) 100C 
C) 35C 
D) 80C 
A) 9C 
B) 100C 
C) 35C 
D) 80C

Question 20

Consider the following structure.   
Complete the sentence using the appropriate terms given below.
hydrophobic
hydrophilic
soluble
insoluble
-The portion of the molecule in the box is classified as ______________________ and that in the circle is classified as_____________________.

Accepted Answer

hydrophobi

The conversion factor for converting from moles of HPO₄^2-- to equivalents is:

An oral rehydration solution contains 30 mEq/L of citrate^3-, what is the molarity of citrate in this solution?

A solution contains 5.75 mg of magnesium ions in 332 mL of solution. What is the concentration of the solution in mEq/L?

Based on the following graph, the solubility of this substance at 80 °C is approximately:

What is the mass of salt in a 400.0 gram-sample of salt water which is 1.50% (w/w) salt?

For the following questions,fill in the blank with one of the following terms as appropriate. increase decrease remains constant cannot predict -When a beverage can is opened the pressure of the gas above the liquid will_ causing the solubility of the gas to __.

The %(v/v) of a solution can be defined as:

A stockroom attendant has a 15.0% (w/v) solution of KOH. What volume of this solution should she use if she needs to prepare 20.0 mL of a 10.0% (w/v) solution?

If 1.00 mol of each of the following solutes is dissolved in 2.00 L of an aqueous solution, which solution contains the largest number of solute particles?

Consider the two containers separated by a semipermeable membrane that allows both glucose and sucrose to pass through. Answer the following questions as appropriate with: right,left,or no movement. -Upon standing the water molecules will move in which direction?

There is a 9 M aqueous HCl solution in the stock room, but a 5 M solution is required for an experiment. Doubling the volume of the 9 M sample with water will produce the 5 M solution.

Dialysis and osmosis are used for the same purposes.

The concentration of cholesterol in plasma was determined to be 215 mg/dL. The mass of cholesterol in 59.1 mL of this plasma is 127 mg.

Which of the following pass through both osmotic and dialysis membranes?

For a 2.00 M solution, the conversion factor for determining the number of moles of solute in a given volume of solution is:

If the seminpermeable membrane has pores too small to allow glucose to pass through, ______________will not occur.

Based on the following graph, approximately what minimum temperature would be needed to dissolved 20 g of this solute in 1.00 L of water?

Consider the following structure. Complete the sentence using the appropriate terms given below. hydrophobic hydrophilic soluble insoluble -The portion of the molecule in the box is classified as __ and that in the circle is classified as_.

Measurements in Science and Medicine

Atoms, Elements, and Compounds

Chemical Bonds

Energy and Physical Properties

Chemical Reactions

Acids and Bases

Nuclear Chemistry

Hydrocarbons: An Introduction to Organic Molecules

Hydration, Dehydration, and Alcohols

Carbonyl Compounds and Redox Reactions

Organic Acids and Bases

Condensation and Hydrolysis Reactions

Proteins

Carbohydrates

Lipids and Membranes

Nucleic Acids, Protein Synthesis, and Heredity

Filters

Exam 5: Solution Concentration

The conversion factor for converting from moles of HPO42-- to equivalents is:

An oral rehydration solution contains 30 mEq/L of citrate3-, what is the molarity of citrate in this solution?

A solution contains 5.75 mg of magnesium ions in 332 mL of solution. What is the concentration of the solution in mEq/L?

Based on the following graph, the solubility of this substance at 80 °C is approximately:

What is the mass of salt in a 400.0 gram-sample of salt water which is 1.50% (w/w) salt?

For the following questions,fill in the blank with one of the following terms as appropriate. increase decrease remains constant cannot predict -When a beverage can is opened the pressure of the gas above the liquid will___________ causing the solubility of the gas to ____________.

The %(v/v) of a solution can be defined as:

A stockroom attendant has a 15.0% (w/v) solution of KOH. What volume of this solution should she use if she needs to prepare 20.0 mL of a 10.0% (w/v) solution?

If 1.00 mol of each of the following solutes is dissolved in 2.00 L of an aqueous solution, which solution contains the largest number of solute particles?

Consider the two containers separated by a semipermeable membrane that allows both glucose and sucrose to pass through. Answer the following questions as appropriate with: right,left,or no movement. -Upon standing the water molecules will move in which direction?

There is a 9 M aqueous HCl solution in the stock room, but a 5 M solution is required for an experiment. Doubling the volume of the 9 M sample with water will produce the 5 M solution.

Dialysis and osmosis are used for the same purposes.

The concentration of cholesterol in plasma was determined to be 215 mg/dL. The mass of cholesterol in 59.1 mL of this plasma is 127 mg.

Which of the following pass through both osmotic and dialysis membranes?

For a 2.00 M solution, the conversion factor for determining the number of moles of solute in a given volume of solution is:

If the seminpermeable membrane has pores too small to allow glucose to pass through, ______________will not occur.

Based on the following graph, approximately what minimum temperature would be needed to dissolved 20 g of this solute in 1.00 L of water?

Consider the following structure. Complete the sentence using the appropriate terms given below. hydrophobic hydrophilic soluble insoluble -The portion of the molecule in the box is classified as ______________________ and that in the circle is classified as_____________________.

Measurements in Science and Medicine

Atoms, Elements, and Compounds

Chemical Bonds

Energy and Physical Properties

Chemical Reactions

Acids and Bases

Nuclear Chemistry

Hydrocarbons: An Introduction to Organic Molecules

Hydration, Dehydration, and Alcohols

Carbonyl Compounds and Redox Reactions

Organic Acids and Bases

Condensation and Hydrolysis Reactions

Proteins

Carbohydrates

Lipids and Membranes

Nucleic Acids, Protein Synthesis, and Heredity

Filters

The conversion factor for converting from moles of HPO₄^2-- to equivalents is:

An oral rehydration solution contains 30 mEq/L of citrate^3-, what is the molarity of citrate in this solution?

For the following questions,fill in the blank with one of the following terms as appropriate. increase decrease remains constant cannot predict -When a beverage can is opened the pressure of the gas above the liquid will_ causing the solubility of the gas to __.

Consider the following structure. Complete the sentence using the appropriate terms given below. hydrophobic hydrophilic soluble insoluble -The portion of the molecule in the box is classified as __ and that in the circle is classified as_.