The number of sulfate ions : 2.2 x 10²³
<h3>Further explanation</h3>
Reaction
Al₂(SO₄)₃⇒2Al³⁺+3SO₄²⁻
mol Al₂(SO₄)₃(MW=342,15 g/mol) :

mol of sulfate ions (SO₄²⁻)

1 mol = 6.02 x 10²³ particles (ions, molecules, atoms), so for 0.366 mol :

The answer is d. calcium silicide is added to liquid steel to increase the steel's ability to freeze
1 mole = 6.02 * 10^23 atoms
This is known as Avogadro's Number. This value is approximate.
Answer:
Multiple fractionation occurs when each tray in the tower has liquid of different weights and temperatures