CHEM 101

Worksheet: Moles #1

1. One mole of any element or compound contains ______________particles.

2. ____________grams is the mass of 6.02 x 10²³ atoms of carbon.

3. ____________grams of magnesium is the mass of one mole of magnesium.

4. Calculate the mass in grams:

a. 3.00 moles of Na

b. 6.00 moles of oxygen gas, O₂

c. 5.00 moles of magnesium

d. 3.50 moles CaCO₃

e. 1.50 moles Ca(OH)₂

5. Calculate the number of moles for each:

a. 200. g of chlorine gas, Cl₂

b. 25.0 g lithium

c. 200. g NaOH

d. 60.0 g potassium sulfate

e. 32 g sulfur dioxide