What were the test results of the lemon juice and baking soda mixture? How do you explain these results?
How do acids and bases help living organisms?
When baking soda and lemon juice are added together, a chemical reaction occurs. [ The reaction of the two is an acid-based reaction because it involves an acid (citric acid in the lemon juice) reacting with a base (sodium bicarbonate, more commonly known as baking soda). We can write this reaction as follows:
C6H8O7 + 3NaHCO3 Na3C6H5O7 + 3H2CO3
In other words, a molecule of citric acid
reacts with three molecules of sodium bicarbonate to form a molecule of sodium citrate and three molecules of carbonic acid. Although an acid is reacting with a base, this is not a neutralization reaction. In a neutralization reaction, the products are water and salt; lemon juice is a weaker acid and baking soda is an organic salt. If you were to measure the pH of a solution containing the products, it would be lower than 7 (acidic).
**Aside from their important functions in human physiology, acids and bases are all around us. Lemon juice, which can be used as a cleansing agent and antiseptic, and household vinegar, which has a myriad of uses, are acids, while baking soda is a base.
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