A sample of phosphorus trichloride (PCl_3) co | vedclass

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Question

(C) $1$ molecule of $PCl_3$ contains $4$ atoms ($1$ atom of $P$ and $3$ atoms of $Cl$).
Number of atoms $= ( 	ext{moles of } PCl_3) 	imes ( 	ext{a

Vedclass · Accepted Answer

$3.372 	imes 10^{24}$

Vedclass · Answer

(C) $1$ molecule of $PCl_3$ contains $4$ atoms ($1$ atom of $P$ and $3$ atoms of $Cl$).
Number of atoms $= ( 	ext{moles of } PCl_3) 	imes ( 	ext{atoms per molecule}) 	imes N_A$
Number of atoms $= 1.4 	imes 4 	imes 6.022 	imes 10^{23}$
Number of atoms $= 5.6 	imes 6.022 	imes 10^{23}$
Number of atoms $= 3.37232 	imes 10^{24}$ atoms.

$A$ sample of phosphorus trichloride $(PCl_3)$ contains $1.4$ moles of the substance. How many atoms are there in the sample?

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