Question

How many moles of cobalt (Co) atoms are there in 6.00 times 10 to the 9th power cobalt atoms?

Answer 1

In
`6.00 * 10^9` of cobalt atoms there are
`6.00 * 10^9` mol Co

Step-by-step explanation:

Step 1 : Identify the relationship between 1 mole Cobalt and Avogadro's number of atoms.

`1 \text{mole Cobalt } = 6.022 * 10^(23) \text{ atoms of cobalt }`

Avogadro’s number is number of units present in one mole of any substance (defined as its molecular weight in grams)

Step 2: Divide the given atoms of cobalt by the number of atoms per mol.

Given atoms of cobalt is
`6.00 * 10^9`

Now by performing division

Number of moles of cobalt (Co) atoms in
`6.00 * 10^9` cobalt atoms is

=
`(6.00 * 10^9)/(6.022 * 10^(23))`

=
`0.996 * 10^9 * 10^(-23)`

=
`0.996 * 10^(9 -23)`

=
`0.996 * 10^(-14)`