Question 1

Sodium nitrate in water will produce a basic solution.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following substances could behave as an Arrhenius base?

Accepted Answer

A) Na2CO3 
B) Na3PO4 
C) K2S 
D) KOH 
A) Na2CO3 
B) Na3PO4 
C) K2S 
D) KOH

Question 3

Sodium phosphate can be used as a driveway degreaser.When added to water,the following equilibrium is attained.Sodium phosphate is acting as a(n)______. Na3PO4 (aq) + 3H2O (l)   H3PO4 (aq)  + 3OH- (aq)

Accepted Answer

A) Brønsted acid 
B) Brønsted base 
C) Arrhenius acid 
D) Arrhenius base 
A) Brønsted acid 
B) Brønsted base 
C) Arrhenius acid 
D) Arrhenius base

Question 4

When your liver detoxifies ethyl alcohol,the concentration of the hydrogen ion increases.This will result in

Accepted Answer

A) respiratory acidosis. 
B) metabolic acidosis. 
C) respiratory alkalosis. 
D) metabolic alkalosis. 
A) respiratory acidosis. 
B) metabolic acidosis. 
C) respiratory alkalosis. 
D) metabolic alkalosis.

Question 5

Water is able to act not only as a solvent but as and acid or base.

Accepted Answer

A) True 
 B)False

Question 6

Solutions with a pH less than 7.00 are basic.

Accepted Answer

A) True 
 B)False

Question 7

Identify the substance with the lowest pH.

Accepted Answer

A) orange juice 
B) household ammonia 
C) baking soda,NaHCO3 
D) milk 
A) orange juice 
B) household ammonia 
C) baking soda,NaHCO3 
D) milk

Question 8

When an inorganic acid and an inorganic base,as defined by Arrhenius,react,the products are salt and water.

Accepted Answer

A) True 
 B)False

Question 9

The pH of blood must remain stable between 7.35 and 7.45.One of the blood components is the bicarbonate ion,   .Bicarbonate takes part in two reactions that are:   (aq)     (aq)+   (aq)       (aq)+   (aq)
This set of equations indicates that this system is a good candidate to act as a buffer system used to hold the pH of blood reasonably stable.

Accepted Answer

A) True 
 B)False

Question 10

A higher pH corresponds to _____ .

Accepted Answer

A) a higher [H+] 
B) a lower [H+] 
C) no change in [OH+] 
D) a lower [OH - ] 
A) a higher [H+] 
B) a lower [H+] 
C) no change in [OH+] 
D) a lower [OH - ]

Question 11

When a solution of HNO3 is added to a solution of NaHCO3,the net ion equation for reaction that occurs is which of the following?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 12

Gastroesophageal reflux disease (GERD)is the result of a malfunctioning muscle that allows stomach to enter the esophagus.

Accepted Answer

A) True 
 B)False

Question 13

The procedure commonly used to determine the amount of base in a solution by adding a measured quantity of acid is called _____ .

Accepted Answer

A) dissociation 
B) titration 
C) ionization 
D) normalization 
A) dissociation 
B) titration 
C) ionization 
D) normalization

Question 14

Which of the following is a weak acid?

Accepted Answer

A) HNO3 
B) HCl 
C) H2CO3 
D) H2SO4 
A) HNO3 
B) HCl 
C) H2CO3 
D) H2SO4

Question 15

How many meq are contained in 25.00 mL of a 0.225 M solution of CaCl2?

Accepted Answer

A) 5.62 * 10-3 meq 
B) 2.81 meq 
C) 1.12 * 10-2 meq 
D) 1.12 * 101 meq 
A) 5.62 * 10-3 meq 
B) 2.81 meq 
C) 1.12 * 10-2 meq 
D) 1.12 * 101 meq

Question 16

Ammonium chloride in water will produce an acidic solution.

Accepted Answer

A) True 
 B)False

Question 17

Consider the following list of pKa values for a series of acids.Which is the strongest acid?

Accepted Answer

A) 5.74 
B) 3.21 
C) 10.6 
D) Cannot be determined. 
A) 5.74 
B) 3.21 
C) 10.6 
D) Cannot be determined.

Question 18

During a field trip to study the problem of acid rain,you test one lake that had observed a major fish kill.It was found to have a pH of 5.37.What is the [H+]?

Accepted Answer

A) 2.3*10-9 
B) 3.7*10-5 
C) 4.3*10-6 
D) 1.7*105 
A) 2.3*10-9 
B) 3.7*10-5 
C) 4.3*10-6 
D) 1.7*105

Question 19

How many equivalents are contained in 0.25 moles of H2SO4?

Accepted Answer

A) 0.25 
B) 0.13 
C) 0.50 
D) can vary 
A) 0.25 
B) 0.13 
C) 0.50 
D) can vary

Question 20

Which of the following mixtures would represent a buffer?

Accepted Answer

A) sodium chloride/hydrochloric acid 
B) sodium sulfate/sulfuric acid 
C) sodium formate/formic acid 
D) none of these 
A) sodium chloride/hydrochloric acid 
B) sodium sulfate/sulfuric acid 
C) sodium formate/formic acid 
D) none of these

Exam 9: Acids, bases, and Salts

Sodium nitrate in water will produce a basic solution.

Which of the following substances could behave as an Arrhenius base?

Sodium phosphate can be used as a driveway degreaser.When added to water,the following equilibrium is attained.Sodium phosphate is acting as a(n)______. Na3PO4 (aq) + 3H2O (l) H3PO4 (aq) + 3OH- (aq)

When your liver detoxifies ethyl alcohol,the concentration of the hydrogen ion increases.This will result in

Water is able to act not only as a solvent but as and acid or base.

Solutions with a pH less than 7.00 are basic.

Identify the substance with the lowest pH.

When an inorganic acid and an inorganic base,as defined by Arrhenius,react,the products are salt and water.

A higher pH corresponds to _____ .

When a solution of HNO3 is added to a solution of NaHCO3,the net ion equation for reaction that occurs is which of the following?

Gastroesophageal reflux disease (GERD)is the result of a malfunctioning muscle that allows stomach to enter the esophagus.

The procedure commonly used to determine the amount of base in a solution by adding a measured quantity of acid is called _____ .

Which of the following is a weak acid?

How many meq are contained in 25.00 mL of a 0.225 M solution of CaCl2?

Ammonium chloride in water will produce an acidic solution.

Consider the following list of pKa values for a series of acids.Which is the strongest acid?

During a field trip to study the problem of acid rain,you test one lake that had observed a major fish kill.It was found to have a pH of 5.37.What is the [H+]?

How many equivalents are contained in 0.25 moles of H2SO4?

Which of the following mixtures would represent a buffer?

Matter, measurements, and Calculations

Atoms and Molecules

Electronic Structure and the Periodic Law

Forces Between Particles

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Carbohydrate Metabolism

Lipid and Amino Acid Metabolism

Body Fluids

Filters

Sodium phosphate can be used as a driveway degreaser.When added to water,the following equilibrium is attained.Sodium phosphate is acting as a(n)______. Na₃PO₄_(aq)+ 3H₂O _(l) H₃PO₄_(aq) + 3OH^-_(aq)

When a solution of HNO₃ is added to a solution of NaHCO₃,the net ion equation for reaction that occurs is which of the following?

How many meq are contained in 25.00 mL of a 0.225 M solution of CaCl₂?

Consider the following list of pK_a values for a series of acids.Which is the strongest acid?

During a field trip to study the problem of acid rain,you test one lake that had observed a major fish kill.It was found to have a pH of 5.37.What is the [H⁺]?

How many equivalents are contained in 0.25 moles of H₂SO₄?