18.2.1 A Review of Relationship Between Acids and Conjugate Bases

Question 1

In order to predict how a molecule will behave as a Brønsted-Lowry acid, it is important to understand what about the molecule?

Answer 1

electron density

Question 2

Study the diagrams of the relative electron densities of various chlorine oxoacids. Which is the weakest acid in the group?

Answer 2

Acid 1

Question 3

What is the type of bond cleavage that leads to proton release called?

Answer 3

Heterolytic cleavage

Question 4

Which of the following statements is false?

Answer 4

The conjugate base of a strong acid is a much stronger base than water.

Question 5

Which of the following statements best summarizes the Brønsted-Lowry concept of acids and bases?

Answer 5

The Brønsted-Lowry concept defines acids and bases in terms of their ability to donate or accept protons.

Question 6

Which of the following is not considered a conjugate acid-base pair?

Answer 6

HClO2 / ClO22−

Question 7

All of the following are monoprotic acids except:

Answer 7

Hydrosulfuric acid

Question 8

The acidity of methane, ammonia, water and hydrofluoric acid is given in the order from the weakest to strongest: CH4 < NH3 < H2O < HF. Which of the following gives the correct order of the basic strength of the conjugate bases of these molecules, from the weakest base to the strongest?

Answer 8

F − < OH − < NH2− < CH3−

Question 9

Which of the following can be considered a dilute solution of a strong acid?

Answer 9

10^−6 M HClO4