Quiz about Unit 11 Acids and Bases Quiz

Question 1

What is the chemical formula for hydrochloric acid?

Accepted Answer

HCl

Answer

H $$_2$$ SO $$_4$$

Answer

HNO $$_3$$

Answer

H $$_2$$ O

Question 2

Which of the following is the correct IUPAC name for NaOH?

Accepted Answer

Sodium hydroxide

Answer

Sodium oxide

Answer

Sodium hydride

Answer

Sodium peroxide

Question 3

What is the chemical formula for sulfuric acid?

Accepted Answer

H $$_2$$ SO $$_4$$

Answer

H $$_2$$ SO $$_3$$

Answer

H $$_2$$ S

Answer

HSO $$_4$$

Question 4

Which of the following is the correct formula for acetic acid?

Accepted Answer

CH $$_3$$ COOH

Answer

HCOOH

Answer

C $$_2$$ H $$_5$$ OH

Answer

C $$_6$$ H $$_5$$ COOH

Question 5

Which of the following is a base according to the Arrhenius definition?

Accepted Answer

NaOH

Answer

HCl

Answer

H $$_2$$ SO $$_4$$

Answer

CH $$_3$$ COOH

Question 6

According to the Bronsted-Lowry definition, which species acts as a base?

Accepted Answer

NH $$_3$$

Answer

HCl

Answer

H $$_2$$ SO $$_4$$

Answer

HNO $$_3$$

Question 7

Which of the following is a strong acid?

Accepted Answer

HCl

Answer

HCN

Answer

CH $$_3$$ COOH

Answer

H $$_2$$ CO $$_3$$

Question 8

Which of the following is a weak base?

Accepted Answer

NH $$_3$$

Answer

NaOH

Answer

KOH

Answer

Ca(OH) $$_2$$

Question 9

What is the product when HCl reacts with NaOH?

Accepted Answer

NaCl and H $$_2$$ O

Answer

NaCl and H $$_2$$

Answer

NaOH and H $$_2$$ O

Answer

H $$_2$$ and O $$_2$$

Question 10

Which of the following best defines pH?

Accepted Answer

The negative logarithm of the hydrogen ion concentration

Answer

The positive logarithm of the hydrogen ion concentration

Answer

The negative logarithm of the hydroxide ion concentration

Answer

The sum of hydrogen and hydroxide ion concentrations

Question 11

Write the chemical formula for nitric acid.

Accepted Answer

HNO $$_3$$

Answer

HNO $$_2$$

Answer

H $$_2$$ NO $$_3$$

Answer

HNO

Question 12

Which of the following is the IUPAC name for KOH?

Accepted Answer

Potassium hydroxide

Answer

Potassium hydride

Answer

Potassium oxide

Answer

Potassium peroxide

Question 13

Which of the following statements best describes an Arrhenius acid?

Accepted Answer

Produces H $$^+$$ ions in water

Answer

Produces OH $$^-$$ ions in water

Answer

Accepts a proton

Answer

Donates an electron

Question 14

Which of the following is a strong base?

Accepted Answer

NaOH

Answer

NH $$_3$$

Answer

CH $$_3$$ NH $$_2$$

Answer

H $$_2$$ O

Question 15

Which of the following is a weak acid?

Accepted Answer

CH $$_3$$ COOH

Answer

HCl

Answer

HNO $$_3$$

Answer

H $$_2$$ SO $$_4$$

Question 16

What are the products of the reaction between H $$_2$$ SO $$_4$$ and KOH?

Accepted Answer

K $$_2$$ SO $$_4$$ and H $$_2$$ O

Answer

KSO $$_4$$ and H $$_2$$

Answer

KOH and H $$_2$$ O

Answer

H $$_2$$ and O $$_2$$

Question 17

If the hydrogen ion concentration of a solution is $$1 imes 10^{-4}$$ M, what is its pH?

Accepted Answer

4

Answer

10

Answer

7

Answer

14

Question 18

Given the formula H $$_2$$ CO $$_3$$ , what is its IUPAC name?

Accepted Answer

Carbonic acid

Answer

Formic acid

Answer

Acetic acid

Answer

Sulfuric acid

Question 19

Write the chemical formula for phosphoric acid.

Accepted Answer

H $$_3$$ PO $$_4$$

Answer

H $$_2$$ PO $$_4$$

Answer

HPO $$_4$$

Answer

H $$_3$$ PO $$_3$$

Question 20

Which of the following best describes the difference between Arrhenius and Bronsted-Lowry definitions of acids and bases?

Accepted Answer

Arrhenius focuses on ions in water, Bronsted-Lowry focuses on proton transfer

Answer

Both focus only on water solutions

Answer

Arrhenius focuses on electron transfer, Bronsted-Lowry on ions

Answer

Both are identical in all cases

Question 21

Which of the following pairs correctly matches a strong acid and a weak acid?

Accepted Answer

HCl (strong), CH $$_3$$ COOH (weak)

Answer

HCl (weak), CH $$_3$$ COOH (strong)

Answer

H $$_2$$ SO $$_4$$ (weak), HNO $$_3$$ (strong)

Answer

HNO $$_3$$ (weak), H $$_2$$ CO $$_3$$ (strong)

Question 22

Which of the following is true about strong and weak bases?

Accepted Answer

Strong bases dissociate completely in water, weak bases do not

Answer

Weak bases dissociate completely in water, strong bases do not

Answer

Both dissociate completely in water

Answer

Neither dissociates in water

Question 23

Predict the products of the reaction: HNO $$_3$$ + KOH $$\rightarrow$$ ?

Accepted Answer

KNO $$_3$$ and H $$_2$$ O

Answer

KNO $$_2$$ and H $$_2$$ O

Answer

KOH and HNO $$_3$$

Answer

KNO $$_3$$ and H $$_2$$

Question 24

A solution has a hydrogen ion concentration of $$1 imes 10^{-7}$$ M. What is its pH?

Accepted Answer

7

Answer

14

Answer

1

Answer

0

Question 25

Given the formula Ca(OH) $$_2$$ , what is its IUPAC name?

Accepted Answer

Calcium hydroxide

Answer

Calcium oxide

Answer

Calcium hydride

Answer

Calcium carbonate

Question 26

Which of the following best explains why NH $$_3$$ is considered a base in the Bronsted-Lowry theory?

Accepted Answer

It accepts a proton from water

Answer

It donates a proton to water

Answer

It produces OH $$^-$$ directly in water

Answer

It is neutral in water

Question 27

A student mixes H $$_2$$ SO $$_4$$ and NaOH. Predict the products and write the balanced equation.

Accepted Answer

Na $$_2$$ SO $$_4$$ + 2H $$_2$$ O; H $$_2$$ SO $$_4$$ + 2NaOH $$\rightarrow$$ Na $$_2$$ SO $$_4$$ + 2H $$_2$$ O

Answer

NaSO $$_4$$ + H $$_2$$ O; H $$_2$$ SO $$_4$$ + NaOH $$\rightarrow$$ NaSO $$_4$$ + H $$_2$$ O

Answer

Na $$_2$$ SO $$_3$$ + H $$_2$$ O; H $$_2$$ SO $$_4$$ + 2NaOH $$\rightarrow$$ Na $$_2$$ SO $$_3$$ + 2H $$_2$$ O

Answer

NaOH + H $$_2$$ SO $$_4$$ ; NaOH + H $$_2$$ SO $$_4$$ $$\rightarrow$$ NaOH + H $$_2$$ SO $$_4$$

Question 28

A solution has a hydrogen ion concentration of $$3.2 imes 10^{-5}$$ M. Calculate its pH to the nearest tenth.

Accepted Answer

4.5

Answer

5.0

Answer

3.5

Answer

6.5

Question 29

Given the following acids: HCl, HNO $$_3$$ , and CH $$_3$$ COOH, which would you expect to have the lowest pH when dissolved at the same concentration? Explain your reasoning.

Accepted Answer

HCl, because it is a strong acid and dissociates completely

Answer

CH $$_3$$ COOH, because it is a weak acid and dissociates partially

Answer

HNO $$_3$$ , because it is a weak acid and dissociates partially

Answer

CH $$_3$$ COOH, because it is a strong acid and dissociates completely

Question 30

A student is given a solution with a pH of 2. Which of the following statements is most accurate about the hydrogen ion concentration?

Accepted Answer

The hydrogen ion concentration is $$1 imes 10^{-2}$$ M, indicating a strong acid

Answer

The hydrogen ion concentration is $$1 imes 10^{-7}$$ M, indicating a neutral solution

Answer

The hydrogen ion concentration is $$1 imes 10^{-12}$$ M, indicating a strong base

Answer

The hydrogen ion concentration is $$1 imes 10^{-14}$$ M, indicating a very weak acid

Unit 11 Acids and Bases Quiz

30 questions

What is the chemical formula for hydrochloric acid?

Which of the following is the correct IUPAC name for NaOH?

What is the chemical formula for sulfuric acid?

Which of the following is the correct formula for acetic acid?

Which of the following is a base according to the Arrhenius definition?

According to the Bronsted-Lowry definition, which species acts as a base?

Which of the following is a strong acid?

Which of the following is a weak base?

What is the product when HCl reacts with NaOH?

Which of the following best defines pH?

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