What happens when sulphur trioxide gas is passed into concentrated sulphuric acid.
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What happens when sulphur trioxide gas is passed into concentrated sulphuric acid.
What happens when sulphur trioxide gas is passed into concentrated sulphuric acid.
Sulphur trioxide gas dissolves in concentrated sulphuric acid to form fuming sulphuric acid, commonly known as oleum.
SO3 + H2SO4 ⟶ H2S2O7 (Oleum)