What is the mole ratio of Citric Acid and Baking Soda?

The mole ratio of citric acid and baking soda is 1 : 3

Explanation: The reaction between citric acid and baking soda (sodium carbonate) yields sodium citrate, water and carbon dioxide. To extract the mole ratio of citric acid and baking soda we need to write a balanced equation for the reaction. The balanced equation for the reaction is:

C₆H₈O₇ (aq) + 3NaHCO₃ (aq) → Na₃C₆H₅O₇ (aq) + 3H₂O (l) + 3CO₂ (g)

From the equation 1 mole of citric acid reacts with 3 moles of baking soda and therefore the mole ratio is 1:3.