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SS1: CHEMISTRY - 2ND TERM

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  1. Kinetic Theory of Matter | Week 1
    3 Topics
    |
    1 Quiz
  2. Kinetic Theory of Matter & Gas Laws I | Week 2
    3 Topics
    |
    1 Quiz
  3. Gas Laws II | Week 3
    3 Topics
    |
    1 Quiz
  4. Gas Laws III | Week 4
    3 Topics
    |
    1 Quiz
  5. Gas Laws IV | Week 5
    3 Topics
    |
    1 Quiz
  6. Mole Concept | Week 6
    5 Topics
    |
    1 Quiz
  7. Acid, Bases and Salts I | Week 7
    7 Topics
    |
    1 Quiz
  8. Acid, Bases and Salts II | Week 8
    6 Topics
    |
    2 Quizzes
  9. Acid, Bases and Salts III | Week 9
    3 Topics
    |
    2 Quizzes
  10. Acid, Bases and Salts IV | Week 10
    4 Topics
    |
    1 Quiz
  11. Acid, Bases and Salts V | Week 11
    5 Topics
    |
    1 Quiz



Lesson 6, Topic 4
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Mole in Terms of Avogadro’s Number

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Topic Content:

  • Mole in Terms of Avogadro’s Number

The mole can be expressed in terms of Avogadro’s number of particles mentioned earlier. The Avogadro’s number is a constant and the value is 6.02 × 1023 atoms or ions or molecules or electrons or protons etc.

1 mole of Na(s) = 6.02 × 1023 atoms

1 mole of Ca2+(s) = 6.02 × 1023 ions

1 mole of HCl(aq) = 6.02 × 1023 molecules

1 mole of Br(aq) = 6.02 × 1023 electrons

1 mole of K+(aq) = 6.02 × 1023 protons.

Example 6.4.1:

Calculate the number of ions present in 2 moles of potassium ion (K+)

Solution:

 

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