Answer:
1.807 × 10²⁴ Ions
Explanation:
One mole of any substance contains exactly 6.022 × 10²³ particles which is also called as Avogadro's Number. Too calculate the number of particles (molecules) contained by 1.0 moles of Na₂SO₄, we will use following relation,
Moles = Number of Molecules ÷ 6.022 × 10²³ Molecules.mol⁻¹
Solving for Number of Molecules,
Number of Molecules = Moles × 6.022 × 10²³ Molecules.mol⁻¹
Putting values,
Number of Molecules = 1.0 mol × 6.022 × 10²³ Molecules.mol⁻¹
Number of Molecules = 6.022 × 10²³ Molecules of Na₂SO₄
Now,
Also Na₂SO₄ contains three ions, i.e.
Na₂SO₄ → ( Na⁺ + Na⁺ + SO₄²⁻ )
Hence, the number ions will be calculated as,
No. of Ions = 6.022 × 10²³ × 3
No. of Ions = 1.807 × 10²⁴ Ions
