identifying baking soda and washing soda

sumdumbum987 · #1 Dec 11, 2006, 05:05 PM

Using a monoprotic acid, how would you find out which sample is baking soda and which sample is washing soda if you have unknown samples of each? I think it has something to do with how much CO2 each produces when reacted with the acid, but i dont know which produces more CO2 and which produces less. Could you also show me the reaction of each with the acid HA?

Edit: i need help on the chemical equation

Thank You

pwd77 · Dec 12, 2006, 08:42 PM

NaHCO3 + HA -> NaA + H2O + CO2 1 mole acid -> 1 mole CO2
(Na)2CO3 + 2HA -> 2NaA + H2O + CO2 1 mole acid -> 1/2 mole CO2

for the same weight of each, an aliquot of acid will yield half as much CO2 with washing as with baking soda



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