Which of the following has the smallest numbe | vedclass

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(C) To find the number of molecules,we calculate the number of moles for each option: $(A)$ $11.2 \ L$ of $O_2$ at $	ext{NTP}$ is $11.2 / 22.4 = 0.5

Vedclass · Accepted Answer

$0.1 \ mole$ of $O_2$

Vedclass · Answer

(C) To find the number of molecules,we calculate the number of moles for each option: $(A)$ $11.2 \ L$ of $O_2$ at $	ext{NTP}$ is $11.2 / 22.4 = 0.5 \ mol = 0.5 \ N_A$ molecules. $(B)$ $8 \ g$ of $O_2$ is $8 / 32 = 0.25 \ mol = 0.25 \ N_A$ molecules. $(C)$ $0.1 \ mol$ of $O_2 = 0.1 \ N_A$ molecules. $(D)$ $2.24 	imes 10^4 \ mL = 22.4 \ L$ of $O_2$ at $	ext{STP}$ is $22.4 / 22.4 = 1 \ mol = 1 \ N_A$ molecules. Comparing the values,$0.1 \ N_A$ is the smallest number of molecules. Thus,option $C$ is correct.

Which of the following has the smallest number of molecules $:-$

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