Mole to Mass Calculations

What is a mole as it is used in chemistry?

• A small animal that burrows in the ground

• A birthmark that is small and round

• A unit used to count atoms

How many atoms are in 1 mole?

• 12

• 1x10^23

• 6.02x10^23

• Cannot answer without the molar mass.

The number of atoms in 1 mole (6.02x10^23) is also known as....

• atomic number

• Avogadro's number

• mass number

• atomic coefficient

How many moles are in 124.1g of FeCl3?

(Molar mass = 162.3g)

• 0.76 mol

• 1.3 mol

• 0.002 mol

How many grams are in 0.65 mol of water?

(Molar mass = 18g)

• 27.7g

• 0.036g

• 11.7g