According to the following reaction, how many moles of calcium carbonate are necessary to form 0.906 moles carbon dioxide?

calcium carbonate (s) calcium oxide (s) + carbon dioxide (g)

0.906 moles of calcium carbonate needed to produced 0.906 moles of carbon dioxide.

Explanation:

Given data:

Moles of carbon dioxide produced = 0.906 mol

Moles of calcium carbonate needed = ?

Solution:

Chemical equation:

CaCO₃  →   CaO + CO₂

Now will compare the moles of carbon dioxide with calcium carbonate:

                  CO₂             :           CaCO₃      

                    1                 :               1

                0.906             :        0.906

So 0.906 moles of calcium carbonate needed to produced 0.906 moles of carbon dioxide.