We decided to try out the baking soda and vinegar experiment today. It seemed like it would give the kids something fun, messy and interesting to do. I’ll admit that I was going off a picture I saw on Pinterest – as a side interest, that drives me wild. Pin the article people, not some random picture 😛 We tried it with the baking soda in water, and whilst it fizzed it wasn’t as impressive as the dry powder.
According to the Yahoo! article I read:
Just why does a mixture of baking soda and vinegar bubble, fizz and froth? It is a chemical reaction between the two that causes the bubbling. Baking soda is actually sodium bicarbonate, which has the chemical formula NaDCO3. Vinegar is acetic acid mixed with water and has the chemical formula CH3COOH. When the two chemicals are mixed together they produce the formula:
NaHCO3 + CH3COOH –> CH3COONa + H2CO3
To see why the bubbling happens, we need to look at the last part of that equation. The H2CO3 is carbonic acid which very quickly breaks down into carbon dioxide (CO2) and water (H2O). The carbon dioxide is what causes the bubbling and foaming when baking soda and vinegar are mixed.
Baking Soda and Vinegar: What Makes This Volcanic Concoction Erupt by Donald J. Sept 11th 2007
The effect was instantaneous and spectacular. The girl’s ooo’d and aaa’d and excitedly added the coloured vinegar.
Over all, this was a fantastic experiment to do with the girls. They were fascinated and full of questions. It was definitely interesting and we’ll do it again!
Originating link: Mom to 2 Post Lil Divas: Fizz, Bubble & Pop! Experimenting with Vinegar + Baking Soda. This was one of a lot I looked at to get all the info – awesome blog btw!