Fizzy Acid-Base Reaction
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Materials:
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Instructions for Experiment using Vinegar as an Acid:
1. Pour in about ½ cup of water into a small container.
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2. Add one squeeze of dishwashing liquid. (This is optional but it makes the reaction more fizzy.)
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3. Add two tablespoons of baking soda.
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4. Mix it all well so that the baking soda dissolves in the water.
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5. Pour in about 1 cup of vinegar.
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6. Watch the acid react with the base forming a bubbly, fizzy solution.
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Instructions for Experiment using Lemon Juice as Acid:
1. Squeeze the juice of one lemon into a cup.
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2. Pour one tablespoon of baking soda into the cup.
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3. Watch the acid react with the base forming a fizzy solution.
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STEM:
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In this experiment, we mix baking soda (also known as sodium bicarbonate) which is a base with vinegar which is an acid. A base is any chemical substance that has a pH of less than 7 and an acid is a substance with a pH of greater than 7. When the two mix, the acid releases hydrogen protons and the base accepts these protons to form hydroxide. This chemical reaction generates carbon dioxide gas which produces the fizzing bubbles you see. You can also do the experiment with lemon juice which is another weak acid that will react with the baking soda.
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