Question

question 5 (1 point)
the ph scale is based on the concentration of the _____ ion in aqueous solution.
hydride
hydronium
peroxide
hydroxide
oxide

Explanation:

The pH scale measures the acidity or basicity of a solution. It is defined as \(pH = -\log[H_3O^+]\), where \([H_3O^+]\) is the concentration of hydronium ions (\(H_3O^+\)) in the aqueous solution. Hydride (\(H^-\)), peroxide (\(O_2^{2 - }\)), hydroxide (\(OH^-\)), and oxide (\(O^{2 - }\)) ions are not the basis of the pH scale.

Answer:

hydronium