we know that
1 Mol is equal to -------> [tex]6.02 * 10^{23}[/tex] atoms (Avogadro's number)
by proportion
[tex]\frac{1}{6.02*10^{23}}\frac{Mol}{Atoms} =\frac{x}{1.52*10^{24}} \frac{Mol}{Atoms}\\ \\x*6.02*10^{23} = 1.52*10^{24}\\ \\x=\frac{1.52*10^{24}}{6.02*10^{23}} \\ \\x=2.52\ Mol[/tex]
therefore
the answer is the option
2.52 mol Hg
The number of moles of mercury (Hg) that are in the sample is 2.52 mol. The correct answer is the second option 2.52 mol Hg
From the question,
We are to determine the number of moles present in a sample of 1.52 × 10²⁴ atoms of mercury
From the formula
[tex]Number\ of\ moles\ = \frac{Number\ of\ atoms}{Avogadro's \ constant}[/tex]
Avogadro's constant = 6.022 ×10 ²³ mol⁻¹
From the question,
Number of mercury atoms = 1.52 × 10²⁴ atoms
∴ Number of moles of Hg = [tex]\frac{1.52 \times 10^{24} }{6.022 \times 10^{23} }[/tex]
Number of moles of Hg = 2.52 mol
Hence, the number of moles of mercury (Hg) that are in the sample is 2.52 mol. The correct answer is the second option 2.52 mol Hg
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