Moles Lesson - Molar Mass, 1-step & 2-step

The
Mole

Multiple Choice

What is Avogadro's number?

• 6.02 x 10²³

• 1 mole

• 600 million

• 6.02

Multiple Choice

How do we calculate the molar mass of H₂O?

• 2+16=18

• 1+16=17

• 2+32=34

• 1+31=32

Multiple Choice

How many atoms are in 1 mole of Iodine (I)?

• 6.022 x 10²³

• 4.022 x 10²³

• 6.022 x 10²⁵

• 4.022 x 10²⁵

Multiple Choice

Which has the most particles?

• 1 mole H₂

• 1 mole Na¹⁺

• 1 mole Al(OH)₃

• These are all the same

Multiple Choice

How many moles are in 6.02 x 10²³ molecules of H₂O?

• 1 mole

• 2 moles

• 6.02 moles

• 602000000000000000000000 moles

Multiple Choice

Which conversion factor should be used to solve the following, "How many moles of argon atoms are present in 11.2 L of argon gas at STP?"

• 1 mol = 22.4 L 

• 1 mol = 39.95 g

• 1 mol = 6.02x10²³ atoms

• More than 1

Multiple Choice

Which of the following dimensional analysis setups will correctly convert 27.76 g of Li to atoms of Li?

• A

• B

• C

• D