The weight of one molecule of a compound is: [1] — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question
Question
The weight of one molecule of a compound $C_{60}H_{122}$ is: [1]
Answer: B
💡 Solution & Explanation
Molar mass $= (60 \times 12) + (122 \times 1) = 720 + 122 = 842$ g/mol. <br>Weight of 1 molecule $= \text{Molar mass} / N_A = 842 / (6.022 \times 10^{23}) \approx 1.398 \times 10^{-21}$ g $\approx 1.4 \times 10^{-21}$ g. [1]
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