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Acids and Bases 1

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Last updated about 1 year ago
10 questions
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QUESTION 1

The following questions relate to these four solutions:

Question 1
1.

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

Question 2
2.

1.2 Write a Ka expression for any one acid shown above. (use a combination of the text box and pen tools)

Question 3
3.

1.3 Write a Kb expression for any one base shown above. (use a combination of the text box and pen tools)

Question 4
4.

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

  1. A
  2. C
  3. D
  4. B
Question 5
5.

1.5 Consider solution A:

What is the concentration of hydronium ions?

Question 6
6.

1.6 Consider solution A:

What is the concentration of hydroxide ions?

Question 7
7.

1.7 Consider solution A:

What is the pH?

QUESTION 2

Kw at 25 oC is 1 x 10-14
Question 8
8.

2.1 What does the Kw value indicate about water's ability to ionise?

Question 9
9.

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:

QUESTION 3

Question 10
10.

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

  1. 1 x 101
  2. 2 x 10-1
  3. 0,8
  4. 1 x 10-5
  5. 1 x 10-2