Mole Chart

How many moles are in 8.30 X 10²³ molecules of H₂O?

• 1.38 X 10²³ moles H₂O

• 1.38 moles H₂O

• 2 moles H₂O

• 1 mole H₂O

What is the mass of 2.50 mole of oxygen gas?

• 40.0 g

• 80.0 g

• 16.0 g

• 32.0 g

Determine the volume in liters of 1.2 mole SO₂ gas at STP.

• 13 L

• 26 L

• 6.5 L

Match the following units to their correct category.

• Particles

• Atoms, Molecules, Ions

• Mass

• Litres at STP

• Volume

• Grams

How many moles are in a sample of 145.0 g of KBr?

• 17,255 mol KBr

• 17,260 mol KBr

• 1.22 mol KBr

• 1.218 mol KBr

If you're converting between grams and moles you need to use:

• 1 mole = 6.022x10²³ particles

• the metric prefix chart

• the molar mass

• 22.4 L = 1 mole

If you want to convert between atoms and moles you need to use:

• 1 mole = 6.022x10²³ particles

• the molar mass

• the metric prefix chart

• 1 mole = 22.4 L

What is the molar mass of aluminum?

• 13 g/mol

• 27 g/mol

• 26 g/mol

• 6.02 x 10²³ g/mol

Find the molar mass of Ca₃(PO₃)₂.

• 87 g/mol

• 199 g/mol

• 278 g/mol

• 214 g/mol

Which conversion factor would you use to convert 31.8 L of methane to moles?