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Why is it dangerous to add water to a concentrated acid during dilution?

Answer and explanation

Correct answer: A large release of heat can cause splashing

Dilution of a concentrated acid is highly exothermic, meaning that considerable heat is released when water and acid mix. If a small amount of water is poured into the acid, the water may heat rapidly, boil locally, and eject acid droplets. These droplets can cause serious chemical burns. The safe laboratory rule is to add acid slowly to a larger volume of water while stirring and wearing protection. The other choices contradict the actual thermal behaviour.

Related tags

Acid DilutionLaboratory SafetyExothermic ReactionAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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