Question

How many moles of cobalt (Co) atoms are there in
6.00x10^9 (6 billion) Co atoms?

Answer 1

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

Answer 2

The number of moles should be $9.96 \times 10^{-15} mol Co$

Calculation of a number of moles:

Avogadro's number shows the number of units in one mole of any substance.

This has the value of $6.022 \times 10^{23}$ units/mole.

Now the computation should be

$= 6.00\times 10^{9}Co\ atoms \times ( 1 mol Co / 6.022 \times 10^{23} atoms Co )$

= $9.96 \times 10^{-15} mol Co$

Find out more information about the moles here:https://brainly.com/question/15209553?referrer=searchResults