Question

how to make a sulphuric acid

Answer 1

Sulfuric acid is used to make phosphoric acid, used, which has a great use. It is also used to make ammonium sulfate, which is a particularly important fertilizer in sulfur-deficient.

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Answer 2

This is then oxidized to sulfur trioxide using oxygen in the presence of a vanadium(V) oxide catalyst. This reaction is reversible and the formation of the sulfur trioxide is exothermic. 7), also known as fuming  sulfuric acid.