How many carbon dioxide (CO2) molecules are produced during the decomposition of 1.25 moles of Carbonic acid (H2CO3)? Remember to use the balanced equation!

7.53×10²³ molecules

Explanation:

Given data:

Number of moles of carbonic acid =  1.25 mol

Number of molecules of CO₂ produced = ?

Solution:

Chemical equation:

H₂CO₃   →     CO₂ + H₂O

Now we will compare the number of moles of carbonic acid with CO₂ from balanced chemical equation.

                                 H₂CO₃      :        CO₂

                                    1             :           1

                                   1.25         :       1.25

Number of molecules can be determine by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

Number of molecules:

1 mole = 6.022 × 10²³ molecules

1.25 mol ×  6.022 × 10²³ molecules  / 1 mol

7.53×10²³ molecules

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