Is The Baking Soda And Vinegar Reaction Endothermic Or Exothermic?

Question

Is The Baking Soda And Vinegar Reaction Endothermic Or Exothermic?

2 Answers

Answer Question

Answer 1

The baking soda and vinegar reaction is endothermic because once combined the temperature of the mixture lowers, meaning the energy was absorbed, as opposed to an exothermic reaction where once two ingredients are mixed together the temperature increases.

Answer 2

Vinegar is a form of acetic acid and baking soda is also known as sodium bicarbonate. The chemical formula for acetic acid or vinegar is CH₃COOH. The chemical formula for baking soda is NaHCO₃. The reaction between vinegar and baking soda is a double displacement reaction. In this reaction carbonic acid and sodium acetate are produced. The balanced equation for the reaction is;

CH₃COOH + NaHCO₃ ------ > CH₃COONa + H₂CO₃

The carbonic acid which is produced during reaction is unstable so, it decomposes into carbon dioxide and water. The bubbles are produced during reaction of vinegar and sodium bicarbonate. These bubbles are produced due to the carbon dioxide. The net chemical equation is;

CH₃COOH + NaHCO₃ ------ > CH₃COONa + H₂O + CO₂