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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