Mole Concept and Some Basic Concepts of ChemistryeasyMCQ SINGLE

The density of a gas at STP is . The gas is:Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

Question

The density of a gas at STP is $1.43\text{ g/L}$. The gas is:

Answer: B

💡 Solution & Explanation

$\text{Molar mass} = \text{Density} \times 22.4 = 1.43 \times 22.4 \approx 32\text{ g/mol}$. <br>$O_2$ has a molecular weight of 32. [4, 24]

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