The Mole Review

How many moles are in 16.94 g of water?

• 16.94 moles H₂O

• 0.9401 moles H₂O

• 305.3 moles H₂O

• 1.063 moles H₂O

How many moles are in 9.8 grams of calcium?

• 0.20 moles Ca

• 4.1 moles Ca

• 1.0 mole Ca

• 392 moles Ca

Which of the following dimensional analysis setups will correctly convert 2.50 moles of sodium to grams of sodium?

• A
• B
• C
• D

How many O atoms are in Al₂(SO₄)₃?

• 4

• 12

• 7

• 24

How many molecules of sugar (C₆H₁₂O₆) are in one mole of sugar?

• 24 molecules

• 180 molecules

• 180 g

• 6.02 x 10²³ molecules

How many N atoms are in (NH₄)₂CrO₄?

• 1

• 2

• 8

• 16

How many grams is in 1.2 moles of Neon?

• 0.05 grams

• 16.6 grams

• 21.2 grams

• 24 grams

Find the number of moles in 25 grams of HF.

• 1.2 mol HF

• 25 mol HF

• 0.8 mol HF

• 80. mol HF

What is the molar mass of NaOH?

• 368.0 g/mole 
• 40.00 g/mole
• 57.00 g/mole
• 23.00 g/mole

How many molecules are in 9.4 moles of AlCl₃?

• 5.66 molecules

• 5.66x10²⁴ molecules

• 0.705 molecules

• 1.25x10²³ molecules