Question 1

Which of the following ionic substances is soluble in water?

Accepted Answer

A)  Ca(OH)2 
B)  PbCO3 
C)  AgCl 
D)  KNO3 
A)  Ca(OH)2 
B)  PbCO3 
C)  AgCl 
D)  KNO3

Question 2

Carbon dioxide gas occupies a volume of 20.0 L at 308K and 2.30 atm. What volume would it occupy at 416 K and 5.40 atm?

Accepted Answer

A)  6.3 L 
B)  11.5 L 
C)  0.460 L 
D)  22.4 L 
A)  6.3 L 
B)  11.5 L 
C)  0.460 L 
D)  22.4 L

Question 3

If 48L of city water contains 0.030 g sodium fluoride, what is the concentration in parts per thousand?

Accepted Answer

A)  16 ppt 
B)  0.0025 ppt 
C)  0.00063 ppt 
D)  1.4 ppt 
A)  16 ppt 
B)  0.0025 ppt 
C)  0.00063 ppt 
D)  1.4 ppt

Question 4

The net ionic equation for the reaction of sodium hydroxide, NaOH, and magnesium nitrate, Mg(NO3)2, contains which of the following species?

Accepted Answer

A)  2Mg2+ (aq) 
B)  Na+ 
C)  Mg(OH)2 (s) 
D)  NaNO3  (aq) 
A)  2Mg2+ (aq) 
B)  Na+ 
C)  Mg(OH)2 (s) 
D)  NaNO3  (aq)

Question 5

Which blood pressure variation tends to double the risk of heart disease?

Accepted Answer

A)  an increase of 5 points systolic pressure 
B)  an increase of 10 points systolic pressure 
C)  an increase of 5 points diastolic pressure 
D)  an increase of 10 points diastolic pressure 
A)  an increase of 5 points systolic pressure 
B)  an increase of 10 points systolic pressure 
C)  an increase of 5 points diastolic pressure 
D)  an increase of 10 points diastolic pressure

Question 6

What is the %(w/v) of a 1500mL solution containing 45 g of NaCl?

Accepted Answer

A)  5.0% 
B)  3.0% 
C)  2.0% 
D)  0.030% 
A)  5.0% 
B)  3.0% 
C)  2.0% 
D)  0.030%

Question 7

A cylinder of gas originally at 28.0°C and 1.00 atm of pressure is heated to 112.0°C. What is the new pressure?

Accepted Answer

A)  4.00 atm 
B)  0.250 atm 
C)  0.782 atm 
D)  1.28 atm 
A)  4.00 atm 
B)  0.250 atm 
C)  0.782 atm 
D)  1.28 atm

Question 8

The concentration of calcium ion in blood is found to be 1.21 mmol/L. What is this concentration in mEq/L?

Accepted Answer

A)  0.605 mEq/L 
B)  1.21 mEq/L 
C)  2.42 mEq/L 
D)  4.84 mEq/L 
A)  0.605 mEq/L 
B)  1.21 mEq/L 
C)  2.42 mEq/L 
D)  4.84 mEq/L

Question 9

For a barometer constructed by filling a glass tube with mercury and carefully inverting the tube into a mercury-filled dish, the greater the pressure pushing down on the mercury in the dish, the shorter the column of mercury.

Accepted Answer

A) True 
 B)False

Question 10

A hurricane might be preceded by an atmospheric pressure of 727 torr. Express 727 torr in atmospheres of pressure.

Accepted Answer

A)  0.727 atm 
B)  0.957 atm 
C)  1.05 atm 
D)  49.5 atm 
A)  0.727 atm 
B)  0.957 atm 
C)  1.05 atm 
D)  49.5 atm

Question 11

The gas constant is used in some calculations. The value of the gas constant is

Accepted Answer

A)  to make certain that all gases are ideal gases. 
B)  0.0821 L atm/mol K. 
C)  25°C and 1 atm. 
D)  0°C and 1 atm at 1-L volume. 
A)  to make certain that all gases are ideal gases. 
B)  0.0821 L atm/mol K. 
C)  25°C and 1 atm. 
D)  0°C and 1 atm at 1-L volume.

Question 12

A blood analysis shows the chloride level to be 85.0 mEq/L. How many grams of chloride are in 1.00 liter of the blood?

Accepted Answer

The answer of A blood analysis shows the chloride level...

Question 13

When red blood cells (with 0.9% (w/v) NaCl solution) are placed into a solution of 5.5 % NaCl they will undergo ___.

Accepted Answer

shriveling

Question 14

A 0.45 mole of krypton gas occupies a volume of 1.6 L. What volume will 1.8 moles of krypton occupy assuming the temperature and pressure remain the same?

Accepted Answer

A)  6.4 L 
B)  0.51 L 
C)  0.40 L 
D)  3.2 L 
A)  6.4 L 
B)  0.51 L 
C)  0.40 L 
D)  3.2 L

Question 15

An uninflated balloon full of air has a volume of 300.0 mL and contains 0.0240 mole of air. A 2.00 g piece of dry ice (solid CO2) is placed in the vessel and sealed. What is the volume of the balloon after the dry ice has vaporized? Assume constant temperature and pressure. Also, assume no change in the initial amount of air.

Accepted Answer

A)  869 mL 
B)  300 mL 
C)  240 mL 
D)  455 mL 
A)  869 mL 
B)  300 mL 
C)  240 mL 
D)  455 mL

Question 16

According to Charles' law, when the Kelvin temperature of a gas doubles (at constant pressure), its volume will ___.

Accepted Answer

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

Question 17

A gas cylinder at a pressure of 4408 torr contains a mixture of N2, O2, and helium gases. If the partial pressure of N2 gas is 1520 torr and the partial pressure of helium is 25 torr, what is the partial pressure of O2?

Accepted Answer

A)  760 torr 
B)  4020 torr 
C)  5953 torr 
D)  2863 torr 
A)  760 torr 
B)  4020 torr 
C)  5953 torr 
D)  2863 torr

Question 18

Sucralfate (molecular weight: 2087g/mol) is a major component of Carafate, which is prescribed for the treatment of gastrointestinal ulcers. The recommended dose for a duodenal ulcer is 1.0g taken orally in 10.0 mL (2 teaspoons) of a solution four times a day. Calculate the molarity of the solution.

Accepted Answer

A)  0.0005 M 
B)  0.048 M 
C)  0.02087 M 
D)  0.010 M 
A)  0.0005 M 
B)  0.048 M 
C)  0.02087 M 
D)  0.010 M

Question 19

At what pressure would methane gas occupy 13.8 L if it occupies 5.74 L at 3.67 atm assuming constant temperature?

Accepted Answer

A)  8.82 atm 
B)  21.6 atm 
C)  1.53 atm 
D)  11.3 atm 
A)  8.82 atm 
B)  21.6 atm 
C)  1.53 atm 
D)  11.3 atm

Question 20

The cause of chronic hypertension is

Accepted Answer

A)  high blood pressure. 
B)  blood moving too fast though the arteries that are dilated. 
C)  constricted movement of blood through blood vessels. 
D)  the inability of the body to respond to a change in posture. 
A)  high blood pressure. 
B)  blood moving too fast though the arteries that are dilated. 
C)  constricted movement of blood through blood vessels. 
D)  the inability of the body to respond to a change in posture.

Which of the following ionic substances is soluble in water?

Carbon dioxide gas occupies a volume of 20.0 L at 308K and 2.30 atm. What volume would it occupy at 416 K and 5.40 atm?

If 48L of city water contains 0.030 g sodium fluoride, what is the concentration in parts per thousand?

The net ionic equation for the reaction of sodium hydroxide, NaOH, and magnesium nitrate, Mg(NO₃)₂, contains which of the following species?

Which blood pressure variation tends to double the risk of heart disease?

What is the %(w/v) of a 1500mL solution containing 45 g of NaCl?

A cylinder of gas originally at 28.0°C and 1.00 atm of pressure is heated to 112.0°C. What is the new pressure?

The concentration of calcium ion in blood is found to be 1.21 mmol/L. What is this concentration in mEq/L?

For a barometer constructed by filling a glass tube with mercury and carefully inverting the tube into a mercury-filled dish, the greater the pressure pushing down on the mercury in the dish, the shorter the column of mercury.

A hurricane might be preceded by an atmospheric pressure of 727 torr. Express 727 torr in atmospheres of pressure.

The gas constant is used in some calculations. The value of the gas constant is

A blood analysis shows the chloride level to be 85.0 mEq/L. How many grams of chloride are in 1.00 liter of the blood?

When red blood cells (with 0.9% (w/v) NaCl solution) are placed into a solution of 5.5 % NaCl they will undergo ___.

A 0.45 mole of krypton gas occupies a volume of 1.6 L. What volume will 1.8 moles of krypton occupy assuming the temperature and pressure remain the same?

According to Charles' law, when the Kelvin temperature of a gas doubles (at constant pressure), its volume will ___.

A gas cylinder at a pressure of 4408 torr contains a mixture of N₂, O₂, and helium gases. If the partial pressure of N₂ gas is 1520 torr and the partial pressure of helium is 25 torr, what is the partial pressure of O₂?

Sucralfate (molecular weight: 2087g/mol) is a major component of Carafate, which is prescribed for the treatment of gastrointestinal ulcers. The recommended dose for a duodenal ulcer is 1.0g taken orally in 10.0 mL (2 teaspoons) of a solution four times a day. Calculate the molarity of the solution.

At what pressure would methane gas occupy 13.8 L if it occupies 5.74 L at 3.67 atm assuming constant temperature?

The cause of chronic hypertension is

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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Exam 6: Gases, Solutions, Colloids, and Suspensions

Which of the following ionic substances is soluble in water?

Carbon dioxide gas occupies a volume of 20.0 L at 308K and 2.30 atm. What volume would it occupy at 416 K and 5.40 atm?

If 48L of city water contains 0.030 g sodium fluoride, what is the concentration in parts per thousand?

The net ionic equation for the reaction of sodium hydroxide, NaOH, and magnesium nitrate, Mg(NO3)2, contains which of the following species?

Which blood pressure variation tends to double the risk of heart disease?

What is the %(w/v) of a 1500mL solution containing 45 g of NaCl?

A cylinder of gas originally at 28.0°C and 1.00 atm of pressure is heated to 112.0°C. What is the new pressure?

The concentration of calcium ion in blood is found to be 1.21 mmol/L. What is this concentration in mEq/L?

For a barometer constructed by filling a glass tube with mercury and carefully inverting the tube into a mercury-filled dish, the greater the pressure pushing down on the mercury in the dish, the shorter the column of mercury.

A hurricane might be preceded by an atmospheric pressure of 727 torr. Express 727 torr in atmospheres of pressure.

The gas constant is used in some calculations. The value of the gas constant is

A blood analysis shows the chloride level to be 85.0 mEq/L. How many grams of chloride are in 1.00 liter of the blood?

When red blood cells (with 0.9% (w/v) NaCl solution) are placed into a solution of 5.5 % NaCl they will undergo ___.

A 0.45 mole of krypton gas occupies a volume of 1.6 L. What volume will 1.8 moles of krypton occupy assuming the temperature and pressure remain the same?

According to Charles' law, when the Kelvin temperature of a gas doubles (at constant pressure), its volume will ___.

A gas cylinder at a pressure of 4408 torr contains a mixture of N2, O2, and helium gases. If the partial pressure of N2 gas is 1520 torr and the partial pressure of helium is 25 torr, what is the partial pressure of O2?

At what pressure would methane gas occupy 13.8 L if it occupies 5.74 L at 3.67 atm assuming constant temperature?

The cause of chronic hypertension is

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

Filters

The net ionic equation for the reaction of sodium hydroxide, NaOH, and magnesium nitrate, Mg(NO₃)₂, contains which of the following species?

A gas cylinder at a pressure of 4408 torr contains a mixture of N₂, O₂, and helium gases. If the partial pressure of N₂ gas is 1520 torr and the partial pressure of helium is 25 torr, what is the partial pressure of O₂?