The number of oxygen atoms in of is: | Mole Concept and Some Basic Concepts of Chemistry — Chem-Mantra

Mole Concept and Some Basic Concepts of ChemistryeasyMCQ SINGLE

Question

The number of oxygen atoms in $4.4\text{ g}$ of $CO_2$ is:

Answer: A

💡 Solution & Explanation

$\text{Moles} = 4.4 / 44 = 0.1$. $\text{Oxygen atoms} = 0.1 \times 2 \times 6.022 \times 10^{23} \approx 1.2 \times 10^{23}$.

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