Question

How many moles are in 3.01 x 1022 atoms of magnesium?0.05 moles1.81 x 1046 moles5.00 x 1021 moles5.00 moles

Answer 1

0.0500 moles

Step-by-step 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.