Question

while diluting an acid ,why is it recommended that the acid should beadded to water and not water to acid

Answer 1

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Acid should be added to water and not water to acid because the mixing of both is an exothermic reaction ,i.e, heat is given out in this . So , this leads to the production of large amount of heat and the solution may boil very violently and the acid may come out of the container..all this is because of the exothermic reaction..so it is preferred to add acid to water..