Which has the maximum number of individual atoms among the following given samples?

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Professor PC Thomas Classes · Answer

(c) : The number of atoms = moles $	imes 	ext{atomicity} 	imes N_A$. For $\mathrm{CO}_2$: $(22/44) 	imes 3 = 1.5 N_A$ atoms. For $\mathrm{O}_3$: $(48/48) 	imes 3 = 3 N_A$ atoms. For $\mathrm{H}_2$: $(4/2) 	imes 2 = 4 N_A$ atoms. For $\mathrm{SO}_2$: $(32/64) 	imes 3 = 1.5 N_A$ atoms. Thus, $4 \mathrm{~g}$ of $\mathrm{H}_2$ possesses the absolute maximum number of atoms ($4 N_A$).