jgalvann8550 jgalvann8550
  • 14-01-2021
  • Chemistry
contestada

1. How many moles of magnesium is 3.01 x 10^23 atoms of magnesium?

Respuesta :

Stephen46
Stephen46 Stephen46
  • 14-01-2021

Answer:

0.5 moles

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{3.01 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{3.01}{6.02} = 0.5 \\ [/tex]

We have the final answer as

0.5 moles

Hope this helps you

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