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Acids, Bases and Salts — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceAcids, Bases and Salts3 Marks
Question
How H3O+ ion is formed in water solution?
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Answer

Hydronium ion is a water molecule with an extra hydrogen ion attached to it. $(\text{H}_2\text{O}+\text{H}^+\rightarrow\text{H}_3\text{O}^+)$ It usually used to determine the acidity of a chemical compound. When a compound is put into water solution, the more the hydronium ion is produced, the higher the acidity is.

EX: $\text{HCl(aq)}+\text{H}_2\text{O(l)}\text{Cl}^-+\text{H}_3\text{O}^+$

Hydronium ion is H3O+. It is formed by the combination of hydrogen ion H+ given by an acid and water molecule.

$\text{H}^+\text{H}_2\text{O}\rightarrow\text{H}_3\text{O}^+$

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