Would the reaction between H2SO4 and NH4OH give off heat?

Question

I have a mystery solution lab in Chemistry and I was wondering if H2SO4 and NH4OH give off heat? Or maybe there is a precipitate or color change? Thanks

Answer 1

The reactions of acids and bases always produce heat and a salt. In this case, we have sulfuric acid (H₂SO₄) and ammonium hydroxide (NH₄OH).

The exothermic reaction will generate heat, and the salt ammonium sulfate.

the equation is H₂SO₄ + 2NH₄OH  >  (NH₄)₂SO₄ + 2H₂O

 

No precipitate will form because ammonium sulfate is very soluble, and there will be no color change.

Answer 2

It is a Neutralization reaction.

It is the reaction between H⁺ + OH^- --> H2O.

It is always an exothermic reaction.