How many moles of carbon dioxide is formed when 4.0 moles of carbonic acid decomposes (water is the other product)?
The chemical equation for this reaction is
You'll notice that all the reagents in this reaction have equal amounts of relative moles, so if
Carbonic acid is a chemical compound with the chemical formula
Thus, each mole of carbonic acid can only produce one mole of carbon dioxide because there is only one mole of carbon per mole of carbonic acid.