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NaHCO3 + O2 = What?
Posted: Mon Sep 17, 2007 7:13 pm
by chemicaldad
I am trying to help my daughter with homework. Sodium bicarbonate is to be burned with Oxygen, what are the products of combustion? It's been a while since I took chemistry. Thanks for any assistance.
The question behind the question
Posted: Mon Sep 17, 2007 8:26 pm
by chemicaldad
The root question is to find two means of finding a way of determining the percentage mix of a dry powdered mixture of sodium bicarbonate and sodium chloride. She was looking at combustion as a means, others must be possible.
Posted: Tue Sep 18, 2007 7:26 am
by peter
NaHCO3 does react with O2.
To find percent in the mixture you may react NaHCO3 with an acid, for example:
NaHCO3 + HCl = NaCl + CO2 + H2O
and from the volume of CO2 gas you may find what was the mass and then perceantage of NaHCO3 in the mixture.