# How many moles of carbon dioxide is formed when 4.0 moles of carbonic acid decomposes (water is the other product)?

##### 2 Answers
May 23, 2017

$4.0$ mol ${\text{CO}}_{2}$

#### Explanation:

The chemical equation for this reaction is

$\text{H"_2"CO"_3"(aq)" rightleftharpoons "CO"_2"(g)" + "H"_2"O(l)}$

You'll notice that all the reagents in this reaction have equal amounts of relative moles, so if $4.0$ moles of ${H}_{2} C {O}_{3}$ decomposes completely, there will be $4.0$ moles of each water and carbon dioxide produced.

May 23, 2017

Four (4).

#### Explanation:

Carbonic acid is a chemical compound with the chemical formula ${H}_{2} C {O}_{3}$.
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.