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severedLims
May 2, 2007, 05:33 PM
Hi,
I am trying to complete my science project and I am doing it on the Soda Pop and its fizz.

I used Powder Citric Acid, C6H8O7, and Baking Soda, NaHCO3, what is the resulting chemical reaction on this?

Is it C6H8O7 + NaHCO3 -> C6H9O8Na + CO2

I normally used 1 to 1 ratio but is it better if I use 2 Citric Acid to 1 Baking Soda?

Thanks for your time in advance.

Cavan

pwd77
May 3, 2007, 06:26 AM
1:1 should be fine, as citric acid has 3 equivalents of acid per molecule, but has about 2-1/2 times the molecular weight, so that is about right.

There is a little more info at this site (http://chemistry.about.com/cs/howtos/ht/endothermic.htm).