One container contains 4 moles of carbon dioxide. Calculate: 1) The number of carbon dioxide molecules? 2)The number of carbon atoms ? 3) The number of oxygen atoms?

1. 2.408 x 10²⁴ molecules

2. 2.408 x 10²⁴ atoms

3. 4.816 x 10²⁴ atoms

Given

4 moles of Carbon dioxide.

Required

Carbon dioxide molecules

Carbon atoms

Oxygen atoms?

Solution

1 moles = 6.02 x 10²³ particles(molecules, atoms, ions)

1. Carbon dioxide molecules :

= 4 moles x 6.02 x 10²³

= 2.408 x 10²⁴ molecules

2. The number of Carbon atoms

In CO₂, there is 1 atom C, so the number of atoms :

= 1 x 2.408 x 10²⁴

= 2.408 x 10²⁴ atoms

3. The number of Oxygen atoms :

In CO₂, there is 2 atom O, so the number of atoms :

= 2 x 2.408 x 10²⁴

= 4.816 x 10²⁴ atoms

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