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Avogadro's Law

One mole of ...

Question

One mole of $C O_{2}$ contains:

3

gram atoms of

C O_{2}

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18 \times 10^{23}

molecules

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6 \times 10^{23} O

atoms

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6 \times 10^{23} C

atoms

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Solution

The correct option is D $6 \times 10^{23} C$ atoms
The Avogadro number of molecules and atoms gives the number of entities in a mole, which is approximately 6.023 × 10²³ entities per mol.
For CO₂ molecule, the entity is a molecule made up of 3 atoms. 1 mole of CO₂ contains only 1 carbon atom.
Therefore, there are 6.023 x 10²³ atoms of carbon.

Thus, option D is correct.

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