Question

How many moles of tungsten atoms are there in 4.8 x 10^25 atoms of tungsten?

kindly explain throughly
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Answer 1

Explanation:

We'll use Avogadro's Number (6.022x10^23) in this equation:

4.8x10^25 atoms W x (1 mole/6.022x10^23 atoms) = 79.7 moles W

The given only contains 2 significant figures, so our answer should also only have 2 sig figs:

80 moles W,  OR   8.0 x 10^1 moles W