What is the mass of one atom of copper in grams?

1 Answer
Jun 27, 2017

1 atom of "Cu" has a mass of 1.055xx10^(-22) "g".

Explanation:

"1 atom Cu" * ("1 mol Cu")/(6.022xx10^23 "atoms Cu") * "63.546 g Cu"/"1 mol Cu"= 1.055xx10^(-22) "g Cu"

1 atom of copper must be converted in moles to express it as a quantity that can be converted into grams (our second step).

Avogadro's Number ("1 mole" = 6.022xx10^23"particles") and the relative atomic mass of copper ("1 mole of copper = 63.546 g") are the equalities required to make this conversion.