The mass of molecules of is: | Mole Concept and Some Basic Concepts of Chemistry — Chem-Mantra

Mole Concept and Some Basic Concepts of ChemistryeasyMCQ SINGLE

Question

The mass of $1.2 \times 10^{24}$ molecules of $H_2O$ is:

Answer: A

💡 Solution & Explanation

$\text{Moles} = 1.2 \times 10^{24} / 6.02 \times 10^{23} \approx 2 \text{ mol}$. <br>$\text{Mass} = 2 \times 18 = 36 \text{ g}$.

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