# Bubbling Baking Soda

## Abstract

The objective of this study was to determine whether or not the amount of baking soda

(sodium bicarbonate) used affects the amount of carbon dioxide produced when reacting with

vinegar (acetic acid). Our null hypothesis was that if different amounts of baking soda react with

70 mL of vinegar, then the mean volume of bubbles formed should be the same because the

amount of baking soda used does not affect the amount of carbon dioxide produced. This

experiment was done by mixing a small amount of liquid soap with vinegar so that the soap is

able to catch the carbon dioxide gas produced when mixed with baking soda. The theoretical

value of baking soda (5 g) needed to react with all the acetic acid present in 70 mL of vinegar

was used as a control and from there, the experiment was replicated multiple times but increasing

the amount of baking soda by 2x, 1.5x, and decreasing it by 0.75, 0.5x, and 0.25x for each

respective trial. The P-value for the one-way ANOVA test was lower than 0.0001, therefore we

were able to reject the null hypothesis.The results of this experiment was that when different

amounts of baking soda were used for the reaction, the volume of bubbles formed differed as

well.