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Laabri

Acids and Bases 1

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Last updated over 1 year ago
10 Nsɛmmisa
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QUESTION 2

Kw at 25 oC is 1 x 10-14

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2

QUESTION 3

1

QUESTION 1

The following questions relate to these four solutions:

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1.

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

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2.

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

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3.

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

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4.

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

  1. D

  2. B

  3. A

  4. C

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5.

1.5 Consider solution A:

What is the concentration of hydronium ions?

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6.

1.6 Consider solution A:

What is the concentration of hydroxide ions?

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7.

1.7 Consider solution A:

What is the pH?

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8.

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

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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:

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10.

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

  1. 1 x 101

  2. 1 x 10-2

  3. 0,8

  4. 2 x 10-1

  5. 1 x 10-5