Calculate the mass, in kg, of each sample.9.62×1026 cadmium atoms.

Question

-5.72×1027 nickel atoms.
-9.14×1027 manganese atoms.
-9.02×1029 lithium atoms.

Answer 1

divide each by avag number to get moles.

then, find molemass of each from periodic table, and multiply.

Answer 2

can you do one example , i am very confused