Acids and Bases 1

Last updated about 1 year ago

10 questions

2

1

2

1

QUESTION 1
The following questions relate to these four solutions:

1.1 Which of these solution(s) are classified as monoprotic acid(s)?

1 x 10-2 mol.dm-3

0,02 mol.dm-3

1 x 10-12 mol.dm-3

1 x 10-14 mol.dm-3

1 x 10-2 mol.dm-3

0,02 mol.dm-3

1 x 10-14 mol.dm-3

1 x 10-12 mol.dm-3

QUESTION 2
Kw at 25 oC is 1 x 10-14

QUESTION 3

1.1  Which of these solution(s) are classified as monoprotic acid(s)?

A

B

C

D

none

1.4  Arrange solutions (A-D) from lowest to highest pH. Click and drag them into correct position.

A

D

B

C

1.5  Consider solution A:

What is the concentration of hydronium ions?

1 x 10-2 mol.dm-3

0,02 mol.dm-3

1 x 10-12 mol.dm-3

1 x 10-14 mol.dm-3

1.6  Consider solution A:

What is the concentration of hydroxide ions?

1 x 10-2 mol.dm-3

0,02 mol.dm-3

1 x 10-14 mol.dm-3

1 x 10-12 mol.dm-3

1.7  Consider solution A:

What is the pH?

1

5

2

4

3

2.2  Describe what happens to the Kw of water when the following changes are made:

Temperature decreases 

A bit of strong acid is added

Kw increases if:

Kw decreases if:

Kw stays the same if:

3.1  Order the following Ka values in order from strongest acid to weakest acid:

0,8

1 x 10-2

2 x 10-1

1 x 101

1 x 10-5