Question

Which of the following concerning electrolytes and the solubility rules is/are true? 1. The solubility rules apply only to ionic substances. 2. All soluble ionic compounds are considered strong electrolytes. 3. The solubility rules apply to aqueous and non-aqueous solutions.

Answer 1

Answer:

1. is true  

Explanation:

The solubility rules apply only to salts, which are ionic compounds.

2. is false. A strong electrolyte is a salt that dissociates completely in solution. Not all salts dissociate completely. For example, a 0.36 mol·L⁻¹ solution dissociates as:

K₂SO₄ ⟶ K⁺   + KSO₄⁻ (30 %) + SO₄²⁻

Thus, K₂SO₄ does not dissociate completely into K⁺ and SO₄²⁻ ions.

3. is false. The solubility rules apply only to aqueous solutions.

Answer 2

The electrolytes and the solubility rules that are true include:

• 1. The solubility rules apply only to ionic substances.
• 2. All soluble ionic compounds are considered strong electrolytes.

• It should be noted that solubility rules only apply to the ability of ionic compounds to be able to dissolve in water.

• The solubility rule is important as it helps in the determination of the solubility of a particular substance before one attempts to create it.

• In a situation where the amount of solute is the same as the solubility, then it's saturated. Also, all soluble ionic compounds are considered strong electrolytes.

In conclusion, the correct options are 1 and 2.

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