How is the concentration of hydronium ions (H3O+) affected when a solution of an acid is diluted?

Q. How is the concentration of hydronium ions (H3O+) affected when a solution of an acid is diluted?

When you dilute an acid with water, the concentration of hydronium ions (H3O+) decreases. This is because the same number of H3O+ ions is spread out in a larger volume of water, making the solution less acidic.

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