Practice Exam 3 multiple choice

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quiz to help study for the final exam. based on acid-base chemistry questions and unit

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Triplets Perez

United States

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Froggy Jumps Practice Exam 3 multiple choiceOnline version quiz to help study for the final exam. based on acid-base chemistry questions and unit by Triplets Perez 1 What is the name of the acid formed from the polyatomic ion ClO2-? a Chlorous acid b Hypochlorous acid c Chloric acid 2 Identify which of the following salts would result in the formation of an acidic solution when dissolved. a AlBr3 b NaF c CaSO3 3 Which of the following species would result in the best possible buffer to maintain a pH of 7? a 1.25 M H2S and 1.25 M NaHS, pKa = 7.02 b 0.25 M H2S and 0.25 M NaHS, pKa = 7.02 c 0.25 M HF and 0.25 M NaF, pKa = 3.14 4 The weak acid, HNO2, has a Ka value of 4.0 x 10-4. What is stronger, HNO2 or its conjugate base? a HNO2, as Ka is larger than Kb b HNO2, as Ka is smaller than Kb c NO2-, as Ka is larger than Kb 5 Which of the following statements regarding acid-base chemistry is false? a An increase of 1 on a pH scale means you increased the acidity of a solution ten-fold b Acidic solutions have higher concentrations of [H+] than [OH-] c Basic solutions have high pH values and low pOH values 6 Which of the following species would be the conjugate acid of HPO4-2? a H2PO4- b H3O+ c H3PO4 7 What is the pH of a 0.35 M solution of KOH? a 13.545 b 0.155 c 13.845 8 Which of the following species would be considered amphoteric? a HSO3- b H3PO4 c LiOH 9 What will the strong acid, HBr, react with in an acetic acid/acetate ion buffer? a Acetate Ion b Neither c Acetic Acid 10 What is the concentration of hydrogen ion at equilibrium for a weak acid, HA, that has an initial concentration of 0.125 M and a percent dissociation of 3.50%? a 0.004375 M b 0.04375 M c 0.1206 M

Froggy Jumps

Practice Exam 3 multiple choiceOnline version

quiz to help study for the final exam. based on acid-base chemistry questions and unit

by Triplets Perez

What is the name of the acid formed from the polyatomic ion ClO2-?

Chlorous acid

Hypochlorous acid

Chloric acid

Identify which of the following salts would result in the formation of an acidic solution when dissolved.

AlBr3

NaF

CaSO3

Which of the following species would result in the best possible buffer to maintain a pH of 7?

1.25 M H2S and 1.25 M NaHS, pKa = 7.02

0.25 M H2S and 0.25 M NaHS, pKa = 7.02

0.25 M HF and 0.25 M NaF, pKa = 3.14

The weak acid, HNO2, has a Ka value of 4.0 x 10-4. What is stronger, HNO2 or its conjugate base?

HNO2, as Ka is larger than Kb

HNO2, as Ka is smaller than Kb

NO2-, as Ka is larger than Kb

Which of the following statements regarding acid-base chemistry is false?

An increase of 1 on a pH scale means you increased the acidity of a solution ten-fold

Acidic solutions have higher concentrations of [H+] than [OH-]

Basic solutions have high pH values and low pOH values

Which of the following species would be the conjugate acid of HPO4-2?

H2PO4-

H3O+

H3PO4

What is the pH of a 0.35 M solution of KOH?

13.545

0.155

13.845

Which of the following species would be considered amphoteric?

HSO3-

H3PO4

LiOH

What will the strong acid, HBr, react with in an acetic acid/acetate ion buffer?

Acetate Ion

Neither

Acetic Acid

What is the concentration of hydrogen ion at equilibrium for a weak acid, HA, that has an initial concentration of 0.125 M and a percent dissociation of 3.50%?

0.004375 M

0.04375 M

0.1206 M

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Practice Exam 3 multiple choice

Froggy Jumps

About this activity

Created by

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Practice Exam 3 multiple choiceOnline version

by Triplets Perez

What is the name of the acid formed from the polyatomic ion ClO2-?

Identify which of the following salts would result in the formation of an acidic solution when dissolved.

Which of the following species would result in the best possible buffer to maintain a pH of 7?

The weak acid, HNO2, has a Ka value of 4.0 x 10-4. What is stronger, HNO2 or its conjugate base?

Which of the following statements regarding acid-base chemistry is false?

Which of the following species would be the conjugate acid of HPO4-2?

What is the pH of a 0.35 M solution of KOH?

Which of the following species would be considered amphoteric?

What will the strong acid, HBr, react with in an acetic acid/acetate ion buffer?

What is the concentration of hydrogen ion at equilibrium for a weak acid, HA, that has an initial concentration of 0.125 M and a percent dissociation of 3.50%?

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