Question

What are the constituent ions in aluminium sulphate?
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Answer 1

Answer:

Aluminium sulfate may be made by adding aluminium hydroxide, Al(OH)3, to sulfuric acid, H2SO4: 2 Al(OH)3 + 3 H2SO4 → Al2(SO4)3 + 6 H2O. or by heating aluminum metal in a sulfuric acid solution: 2 Al + 3 H2SO4 → Al2(SO4)3 + 3 H2↑

Chemical formula: Al2(SO4)3

Other cations: Gallium sulfate; Magnesium sulfate

Density: 2.672 g/cm3 (anhydrous); 1.62 g/cm3 (octadecahydrate)

Solubility in water: 31.2 g/100 mL (0 °C); 36.4 g/100 mL (20 °C); 89.0 g/100 mL (100 ...

Explanation:

Aluminium sulfate is an ionic compound, a combination of both positive and negative ions. Ions are charged atoms, which may either be monatomic ions (single atoms) or polyatomic (multiple atoms combined to form a charged part). Aluminium forms a + 3 ion, Al+3, and sulphate is the -2 polyatomic ion, (SO4)-2.

Answer 2

Question:

What are the constituent ions in aluminium sulphate?

Answer:

• Ions are charged atoms, which may either be monatomic ions (single atoms) or polyatomic (multiple atoms combined to form a charged part).

Explanation:

Aluminium forms a + 3 ion, Al+3, and sulphate is the -2 polyatomic ion, (SO4)-2.