When an acid is dissolved in water, what ion does the water form?
The ion that is formed by the water on dissociation when acid is dissolved in it.
Answer to Problem 1RQ
The water forms a hydronium ion, when an acid is dissolved in it.
Explanation of Solution
The acid is a substance that donates the hydrogen ion. It is also known as the proton donor.
When the acid is dissolved in water, it releases the hydrogen ion. The hydrogen ion is donated to the water molecule. As a result, three hydrogens get bonded to the oxygen. It is a water molecule with an extra proton. The ion is called a hydronium ion.
The water acts as a proton acceptor (base).
Conclusion:
Therefore, the water forms a hydronium ion, when an acid is dissolved in it.
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