Question 1

How many grams of calcium are in 1.00 L of blood with a calcium ion concentration of 210. mEq/L?

Accepted Answer

The answer of How many grams of calcium are in...

Question 2

You are required to make 500.0 mL of a 2.50 M solution of MgCl2. How many grams of MgCl2 are required?

Accepted Answer

Question 3

What will be the mass of hydrogen gas, H2, that is stored in a 15.0-L container at the pressure of 7.50 atm? The container is kept at 20.0°C. (Use the mass of 2.00 g/mol for the hydrogen.)

Accepted Answer

A)  225 g 
B)  137 g 
C)  80.0 g 
D)  9.35 g 
A)  225 g 
B)  137 g 
C)  80.0 g 
D)  9.35 g

Question 4

In a homogeneous mixture

Accepted Answer

A)  the substances are not evenly distributed. 
B)  the substances are always liquid. 
C)  the substances are always solids. 
D)  the substances are uniformly distributed. 
A)  the substances are not evenly distributed. 
B)  the substances are always liquid. 
C)  the substances are always solids. 
D)  the substances are uniformly distributed.

Question 5

A gas occupies a volume of 8.60 L at 45C and 764 torr. What pressure would it occupy if the volume is adjusted to 13.3 L at 20C?

Accepted Answer

A)  536 torr 
B)  455 torr 
C)  109 torr 
D)  188 torr 
A)  536 torr 
B)  455 torr 
C)  109 torr 
D)  188 torr

Question 6

How many milliliters of 6.0 M HCl must be diluted to make 500.0 mL of a 0.10 M solution?

Accepted Answer

A)  1.2 mL 
B)  8.3 mL 
C)  30. mL 
D)  300 mL 
A)  1.2 mL 
B)  8.3 mL 
C)  30. mL 
D)  300 mL

Question 7

In Death Valley, which is located below sea level, the atmospheric pressure exceeds 760 torr. Water boils at ___.

Accepted Answer

A)  a temperature less than 100ºC 
B)  100ºC 
C)  a temperature greater than 100ºC 
D)  None of these choices. 
A)  a temperature less than 100ºC 
B)  100ºC 
C)  a temperature greater than 100ºC 
D)  None of these choices.

Question 8

The solute of a solution is usually present in greatest amount.

Accepted Answer

A) True 
 B)False

Question 9

Identify the compound that is soluble in water.

Accepted Answer

A)  Ca(OH)2 
B)  Ba(NO3)2 
C)  AgCl 
D)  Fe2(CO3)3 
A)  Ca(OH)2 
B)  Ba(NO3)2 
C)  AgCl 
D)  Fe2(CO3)3

Question 10

Ions that are in an identical state on both sides of a total ionic equation are called ___.

Accepted Answer

The answer of Ions that are in an identical state...

Question 11

According to Boyle's law, when the pressure on a gas is doubled (at constant temperature), its volume will ___.

Accepted Answer

A)  double 
B)  be reduced to 1/2 
C)  quadruple 
D)  remain the same 
A)  double 
B)  be reduced to 1/2 
C)  quadruple 
D)  remain the same

Question 12

Red blood cells must be stored in a(an) ___ solution or they will lose or gain water.

Accepted Answer

The answer of Red blood cells must be stored in...

Question 13

A compound is likely to be hydrophilic if

Accepted Answer

A)  it contains polar groups. 
B)  all of the chemical bonds are covalent. 
C)  the compound forms strong London force interactions between molecules. 
D)  there are many carbon atoms in the skeleton of the molecule. 
A)  it contains polar groups. 
B)  all of the chemical bonds are covalent. 
C)  the compound forms strong London force interactions between molecules. 
D)  there are many carbon atoms in the skeleton of the molecule.

Question 14

A 155-L helium balloon is heated from 24.0 C to 38.0 C. What would be its new volume assuming the pressure remains constant?

Accepted Answer

A)  148 L 
B)  162 L 
C)  597 L 
D)  258 L 
A)  148 L 
B)  162 L 
C)  597 L 
D)  258 L

Question 15

A cylinder of gas at a temperature of 21oC has a pressure of 3.8 atm. If the closed cylinder were heated in a fire to a temperature of 365oC, what would be the new pressure?

Accepted Answer

A)  8.2 atm 
B)  66 atm 
C)  1.8 atm 
D)  0.22 atm 
A)  8.2 atm 
B)  66 atm 
C)  1.8 atm 
D)  0.22 atm

Question 16

If 25.0 mL of 3.0 M HCl are diluted to give a final volume of 150 mL, what is the new concentration?

Accepted Answer

A)  0.50 M 
B)  75 M 
C)  2.0 M 
D)  4.5 M 
A)  0.50 M 
B)  75 M 
C)  2.0 M 
D)  4.5 M

Question 17

When red blood cells are placed into a NaCl solution more dilute than 0.9% (w/v), which is the same solute concentration as found inside the cells, they will undergo ___ since dilute solution is ___.

Accepted Answer

A)  crenation/hypotonic 
B)  crenation/hypertonic 
C)  hemolysis/hypotonic 
D)  hemolysis/hypertonic 
A)  crenation/hypotonic 
B)  crenation/hypertonic 
C)  hemolysis/hypotonic 
D)  hemolysis/hypertonic

Question 18

Identify the compound that is insoluble in water.

Accepted Answer

A)  Ba3(PO4)2 
B)  Ba(NO3)2 
C)  K3PO4 
D)  AgNO3 
A)  Ba3(PO4)2 
B)  Ba(NO3)2 
C)  K3PO4 
D)  AgNO3

Question 19

A sample of hydrogen gas (H2) has a volume of 17.4 L at a temperature of 0.00C and a pressure of 1.60 atm. The number of moles of H2 molecules of hydrogen in the sample is

Accepted Answer

A)  2.48 mol 
B)  0.652 mol 
C)  1.24 mol 
D)  4.41 mol 
A)  2.48 mol 
B)  0.652 mol 
C)  1.24 mol 
D)  4.41 mol

Question 20

In a mountain location where the atmospheric pressure is less than 1.00 atm, water will boil at ___.

Accepted Answer

A)  a temperature less than 100ºC 
B)  100ºC 
C)  a temperature greater than 100ºC 
D)  None of these choices. 
A)  a temperature less than 100ºC 
B)  100ºC 
C)  a temperature greater than 100ºC 
D)  None of these choices.

How many grams of calcium are in 1.00 L of blood with a calcium ion concentration of 210. mEq/L?

You are required to make 500.0 mL of a 2.50 M solution of MgCl₂. How many grams of MgCl₂ are required?

What will be the mass of hydrogen gas, H₂, that is stored in a 15.0-L container at the pressure of 7.50 atm? The container is kept at 20.0°C. (Use the mass of 2.00 g/mol for the hydrogen.)

In a homogeneous mixture

A gas occupies a volume of 8.60 L at 45C and 764 torr. What pressure would it occupy if the volume is adjusted to 13.3 L at 20C?

How many milliliters of 6.0 M HCl must be diluted to make 500.0 mL of a 0.10 M solution?

In Death Valley, which is located below sea level, the atmospheric pressure exceeds 760 torr. Water boils at ___.

The solute of a solution is usually present in greatest amount.

Identify the compound that is soluble in water.

Ions that are in an identical state on both sides of a total ionic equation are called ___.

According to Boyle's law, when the pressure on a gas is doubled (at constant temperature), its volume will ___.

Red blood cells must be stored in a(an) ___ solution or they will lose or gain water.

A compound is likely to be hydrophilic if

A 155-L helium balloon is heated from 24.0 C to 38.0 C. What would be its new volume assuming the pressure remains constant?

A cylinder of gas at a temperature of 21^oC has a pressure of 3.8 atm. If the closed cylinder were heated in a fire to a temperature of 365^oC, what would be the new pressure?

If 25.0 mL of 3.0 M HCl are diluted to give a final volume of 150 mL, what is the new concentration?

When red blood cells are placed into a NaCl solution more dilute than 0.9% (w/v), which is the same solute concentration as found inside the cells, they will undergo _ since dilute solution is _.

Identify the compound that is insoluble in water.

A sample of hydrogen gas (H₂) has a volume of 17.4 L at a temperature of 0.00C and a pressure of 1.60 atm. The number of moles of H₂ molecules of hydrogen in the sample is

In a mountain location where the atmospheric pressure is less than 1.00 atm, water will boil at ___.

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An Introduction to Organic Compounds

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Organic Reactions Hydrocarbons, Carboxlic Acids, Amines, and Related Compounds

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Exam 6: Gases, Solutions, Colloids, and Suspensions

How many grams of calcium are in 1.00 L of blood with a calcium ion concentration of 210. mEq/L?

You are required to make 500.0 mL of a 2.50 M solution of MgCl2. How many grams of MgCl2 are required?

What will be the mass of hydrogen gas, H2, that is stored in a 15.0-L container at the pressure of 7.50 atm? The container is kept at 20.0°C. (Use the mass of 2.00 g/mol for the hydrogen.)

In a homogeneous mixture

A gas occupies a volume of 8.60 L at 45C and 764 torr. What pressure would it occupy if the volume is adjusted to 13.3 L at 20C?

How many milliliters of 6.0 M HCl must be diluted to make 500.0 mL of a 0.10 M solution?

In Death Valley, which is located below sea level, the atmospheric pressure exceeds 760 torr. Water boils at ___.

The solute of a solution is usually present in greatest amount.

Identify the compound that is soluble in water.

Ions that are in an identical state on both sides of a total ionic equation are called ___.

According to Boyle's law, when the pressure on a gas is doubled (at constant temperature), its volume will ___.

Red blood cells must be stored in a(an) ___ solution or they will lose or gain water.

A compound is likely to be hydrophilic if

A 155-L helium balloon is heated from 24.0 C to 38.0 C. What would be its new volume assuming the pressure remains constant?

A cylinder of gas at a temperature of 21oC has a pressure of 3.8 atm. If the closed cylinder were heated in a fire to a temperature of 365oC, what would be the new pressure?

If 25.0 mL of 3.0 M HCl are diluted to give a final volume of 150 mL, what is the new concentration?

When red blood cells are placed into a NaCl solution more dilute than 0.9% (w/v), which is the same solute concentration as found inside the cells, they will undergo ___ since dilute solution is ___.

Identify the compound that is insoluble in water.

A sample of hydrogen gas (H2) has a volume of 17.4 L at a temperature of 0.00C and a pressure of 1.60 atm. The number of moles of H2 molecules of hydrogen in the sample is

In a mountain location where the atmospheric pressure is less than 1.00 atm, water will boil at ___.

Science and Measurements

Atoms and Elements

Compounds

An Introduction to Organic Compounds

Reactions

Acids, Bases, and Equilibrium

Organic Reactions Hydrocarbons, Carboxlic Acids, Amines, and Related Compounds

Organic Reactions 2-Alcohols, Ethers, Aldehydes, and Ketones

Carbohydrates

Lipids and Membranes

Peptides, Proteins, and Enzymes

Nucleic Acids

Metabolism

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You are required to make 500.0 mL of a 2.50 M solution of MgCl₂. How many grams of MgCl₂ are required?

What will be the mass of hydrogen gas, H₂, that is stored in a 15.0-L container at the pressure of 7.50 atm? The container is kept at 20.0°C. (Use the mass of 2.00 g/mol for the hydrogen.)

A cylinder of gas at a temperature of 21^oC has a pressure of 3.8 atm. If the closed cylinder were heated in a fire to a temperature of 365^oC, what would be the new pressure?

When red blood cells are placed into a NaCl solution more dilute than 0.9% (w/v), which is the same solute concentration as found inside the cells, they will undergo _ since dilute solution is _.

A sample of hydrogen gas (H₂) has a volume of 17.4 L at a temperature of 0.00C and a pressure of 1.60 atm. The number of moles of H₂ molecules of hydrogen in the sample is