What is the mass of .5 mole of calcium atoms?

1 Answer
Jul 6, 2016

Answer:

Approx. #20*g#

Explanation:

#1# #"mole"# of calcium atoms have a mass of #40.08*g*mol#. It follows that #0.5*molxx40.08*g*mol^-1# #=# #??g#.

What is the number of calcium atoms that has this mass?