## How Many Moles?

### Quiz

You will need a calculator for this exercise.

In order to go from number of moles to number of atoms or molecules:

- multiply by 6.02 x 10
^{23}. - divide by 6.02 x 10
^{23}.

To go from number of atoms or molecules to number of moles:

- multiply by 6.02 x 10
^{23}. - divide by 6.02 x 10
^{23}.

If I had 6.02 x 10 ^{23} atoms of Oxygen, how many moles would I have?

- 1
- 2
- 3
- 4

If I had 3 moles of Carbon, how many atoms would I have?

- 6.02 x 10
^{23} atoms - 12.06 x 10
^{23} atoms - 18.06 x 10
^{23} atoms - 24.08 x 10
^{23} atoms

If I had 2.5 moles of Lithium, how many atoms would I have?

- 6.02 x 10
^{23} atoms - 12.04 x 10
^{23} atoms - 15.05 x 10
^{23} atoms - 17.25 x 10
^{23} atoms

If I had 12.04 x 10 ^{23} atoms of Magnesium, how many moles do I have?

- 1
- 2
- 2.5
- 3
- 3.4
- 4

If I have 2.1 x 10 ^{24} atoms, how many moles do I have?

- 1
- 1.5
- 2
- 2.5
- 3
- 3.5
- 4
- 4.5

How many atoms are in 3.4 moles of Potassium?

- 1.32 x 10
^{24} atoms - 1.2 x 10
^{24} atoms - 2.05 x 10
^{24} atoms - 5.6 x 10
^{22} atoms

How many moles are in 2.53 x 10^{24} molecules of Silicon?

- 1.53 moles
- 4.2 moles
- 1.9 moles
- 5.2 moles

How many molecules are in 7.5 moles of CO_{2}?

- 4.5 x 10
^{24} molecules - 8.02 x 10
^{24} molecules - 1.35 x 10
^{23} molecules - 330 molecules