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

1 Answer
Jun 27, 2017

Answer:

#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.