How many moles of cobalt (Co) atoms are there in

6.00x10^9 (6 billion) Co atoms?

9.9vogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles. Calculation are as follows:

6.00x10^9 Co atoms x (1 mol Co / 6.022 x 10^23 atoms Co) = 9.96 x 10^-15 mol Co