of at STP contains: | Mole Concept and Some Basic Concepts of Chemistry — Chem-Mantra

Mole Concept and Some Basic Concepts of ChemistryeasyMCQ SINGLE

Question

$5.6 \text{ L}$ of $O_2$ at STP contains:

Answer: B

💡 Solution & Explanation

$\text{Moles} = 5.6 / 22.4 = 0.25 \text{ mol}$. <br>$\text{Atoms} = 0.25 \times 2 \times N_A = 0.5 N_A = 3.01 \times 10^{23}$.

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