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15 September, 09:52

HCl (hydrochloric acid) is a strong acid; its ions completely dissociate when placed in solution. HF (hydrofluoric acid) is a weak acid; its ions do not completely dissociate in solution. Which one is a stronger electrolyte?

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  1. 15 September, 11:05
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    The stronger electrolyte is the HCl

    Explanation:

    Stronger electrolyte are the ones, that in water, completely dissociates.

    HCl (aq) → H⁺ (aq) + Cl⁻ (aq)

    HCl (aq) + H₂O (l) → H₃O⁺ (aq) + Cl⁻ (aq)

    Both are acids, they bring protons to medium but the hydrochloric completely dissociates.

    HF (aq) + H₂O (l) ⇄ H₃O⁺ (aq) + F⁻ (aq) Ka

    In the dissociation of weak electrolytes, they ionize but at the same time they bond again, so the reaction is always kept in equilibrium.
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