Question

How many atoms are in 3.52 moles of krypton, Kr?

Answer 1

We know that there are 3.52 moles of krypton and we must find how many atoms there are

In oder to find the number of atoms we must use the next formula

`\text{ \#of atoms}=\frac{\text{ \#of mol}\cdot6.02\cdot10^(23)\text{ atoms}}{1mol}`

We need replace in the formula the given information,

- # of mol = 3.52

Now, replacing in the formula

`\text{ \#of atoms}=\frac{3.52\text{mol}\cdot6.02\cdot10^(23)atoms}{1mol}`

Simplifying,

`\text{ \#of atoms}=2.11904\cdot10^(24)atoms`

ANSWER:

In 3.52 moles of krypton there are 2.11904 * 10^24 atoms.