Moles

In chemistry, a "mole" is:

• The mass of an atom
• a large number used to count particles
• based on the volume of a substance

How many potatoes are in one dozen potatoes?

• 10
• 12
• 2
• 6.02 x 10²³

How many atoms of iodine are in a mole of iodine?

• 53
• 63.55g
• 126.9
• 6.02 x 10²³

The number 6.02 x 10²³ is called...

• Obama's number
• Bohr's number
• Trump's number
• Avogadro's number

What is the molar mass of NaCl?

• 58.45g/mol
• 28g/mol
• 12g/mol
• 6.02 x 10²³

What is the molar mass of C₂H₄O₂? Round to a whole number

• 40g/mol

• 50g/mol

• 60g/mol

• 70g/mol

What would be the mass of 1.5mol H₂O? Round to a whole number.

• 20g

• 27g

• 32g

• 40g

If I need 20 moles of sodium chloride, how much should I weigh out?

• 0.549 g

• 112 g

• 1149 g

• 5077 g

Which has more molecules?

• 1 mole H₂O
• 1 mole Al(OH)₃
• 1 mole NaCl
• There are all the same

What is the molar mass of Cl₂?

• 17 g/mol

• 35.5 g/mol

• 70.9 g/mol

• 89 g/mol