Which of the following has the minimum number | vedclass

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(D) To find the number of oxygen atoms,we calculate the moles of oxygen atoms in each option:$A) \ 10 \ mL \ H_2O_{(l)}: 	ext{Density} \approx 1 \ g/

Vedclass · Accepted Answer

$12.04 	imes 10^{22}$ molecules of $CO_2$

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(D) To find the number of oxygen atoms,we calculate the moles of oxygen atoms in each option:$A) \ 10 \ mL \ H_2O_{(l)}: 	ext{Density} \approx 1 \ g/mL, 	ext{so mass} = 10 \ g. 	ext{Moles of } H_2O = 10/18 \approx 0.556 \ mol. 	ext{Oxygen atoms} = 0.556 	imes 1 = 0.556 \ mol.$$B) \ 0.1 \ mol \ V_2O_5: 	ext{Oxygen atoms} = 0.1 	imes 5 = 0.5 \ mol.$$C) \ 12 \ g \ O_3: 	ext{Moles of } O_3 = 12/48 = 0.25 \ mol. 	ext{Oxygen atoms} = 0.25 	imes 3 = 0.75 \ mol.$$D) \ 12.04 	imes 10^{22} 	ext{ molecules of } CO_2: 	ext{Moles} = (12.04 	imes 10^{22}) / (6.022 	imes 10^{23}) \approx 0.2 \ mol. 	ext{Oxygen atoms} = 0.2 	imes 2 = 0.4 \ mol.$Comparing the values: $0.556, 0.5, 0.75, 0.4$. The minimum is $0.4 \ mol$ from option $D$.

Which of the following has the minimum number of oxygen atoms?

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