How many moles of tungsten atoms

How many moles of tungsten atoms are in 4.8X10 25 atoms of tungsten?

Answers

Explanation:

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Explanation:

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

n =  frac{N}{L}

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

n =  frac{4.8 times  {10}^{23} }{6.02 times  {10}^{23} }  =  frac{4.8}{6.02}  \  = 0.797342192

We have the final answer as

8.0 × 10-¹ moles

Hope this helps you

Number of moles = number of atoms/Avogadro's number
= (4.8x10^25)/(6.02x10^23)
=79.7 mol (3sf)

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