Conclusion

The experiment successfully utilized the acid-base reaction between citric acid and baking soda to make carbonated water, but the actual results deviated slightly from theoretical expectations. The finished product had weak and alkaline bubbles, which could be attributed to the escape of carbon dioxide due to poor sealing or too much space in the container. Although the yield measured by the gas collection method differed from the theoretical value, the stoichiometric ratio of 3:1 was still verified to be valid. The alkaline aftertaste and lack of foam suggest that gas dissolution is challenging. Future experiments need to improve sealing methods, reduce container space, and use more precise gas collection techniques (e.g., gas syringes) to improve accuracy.

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