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Write chemical equation expressing what a weak electrolytes does in water?
1 Answer
- anonymousLv 72 years ago
A weak electrolyte is an electrolyte that dissolves in water to give a relatively small percentage of ions. Examples of weak electrolytes are weak acids, weak bases, and insoluble salts.
For example, for the weak acid HCN in water, the equation is
HCN(aq) + H₂O(ℓ) ⇌ H₃O⁺ + CN⁻(aq)
An equation for a generic weak acid HA in water is
HA(aq) + H₂O(ℓ) ⇌ H₃O⁺ + A⁻(aq)
The ionization of a weak electrolyte is not complete, so the double arrow ⇌ is used.
(equilibrium situation)