High School

How many moles are in [tex]3.01 \times 10^{22}[/tex] atoms of magnesium?

A. 0.05 moles
B. [tex]1.81 \times 10^{46}[/tex] moles
C. [tex]5.00 \times 10^{21}[/tex] moles
D. 5.00 moles

Answer :

Answer:

0.0500 moles

Explanation:

To determine the number of moles of magnesium atoms, we need to use Avogadro's number, which is 6.022 x 10^23 atoms per mole. We can use this to convert the given number of magnesium atoms into moles.

Number of moles = Number of atoms / Avogadro's number

Number of moles of magnesium = 3.01 x 10^22 / 6.022 x 10^23

Number of moles of magnesium = 0.0500 moles (rounded to four significant figures)

Thus, 0.0500 moles of magnesium are in 3.01 x 10^22 atoms of magnesium.

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