# How to calculate number of atoms per mass, electrons per vol

How does one calculate:

a) the number of atoms per mass of an element?

b) The number of electrons per volume of an element?

Please show the units for each factor i. e. Avogadro's number, Atomic Number, Atomic Mass, etc.

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#### Solution Preview

a) As we know that moles = mass of an element / atomic mass

and also, 1 mole of an element has 6.02 ...

#### Solution Summary

This solution includes stepwise explanation of how to calculate number of atoms per mass as well as electrons per unit volume

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