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28 May, 05:46

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.

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  1. 28 May, 05:59
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    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.
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