The reaction of sodium hydrogen carbonate (baking soda), NaHCO3 and vinegar is a safe and effective method of opening a clogged drain

Question

a) Write the chemical equation for this reaction
b) Explain why using sodium hydrogen carbonate and vinegar may be a greater alternative to using household drain openers, many of which contain sodium hydroxide

Answer 1

NaHCO3 + CH3COOH ==> CH3COONa + H2O + CO2
The hope is that the bubbling CO2 gas will unclog the drain. NaOH is a very good drain opener but it is so caustic and can cause severe damage if it gets on the skin or in the eyes.