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An acidic solution is diluted with a large amount of water. Which conclusion is most scientific?

Answer and explanation

Correct answer: Hydrogen ions per unit volume will decrease and pH will increase

Dilution adds water and increases the solution’s volume, while the amount of dissolved acid is not instantly removed. Consequently, the number of hydrogen ions per unit volume, or [H⁺], decreases. Since pH = −log[H⁺], a decrease in hydrogen-ion concentration causes pH to rise, although the solution may remain acidic. Therefore option A is correct; dilution does not make it a strong base.

Related tags

DilutionPhHydrogen IonsAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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