trisleavitt10 trisleavitt10
  • 19-11-2020
  • Chemistry
contestada

A ring made of pure gold contains 5.29 x 1022 atoms. How many moles are in the ring?

Respuesta :

Stephen46
Stephen46 Stephen46
  • 19-11-2020

Answer:

0.088 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{5.29 \times {10}^{22} }{6.02 \times {10}^{23} } \\ = 0.087873...[/tex]

We have the final answer as

0.088 moles

Hope this helps you

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