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

We use the periodic table to calculate...

• mass

• molar mass

• moles

What is the molar mass of NaCl?

• 58.45g/mol

• 28g/mol

• 12g/mol

• 6.02 x 10²³

How many particles would be in 8.4 moles of Octane (C₈H₁₈)?

• 5.77 x 10²³

• 5.05 x 10²⁴

• 5.77 x 10²⁶

• 5.0 x 10²³

Which has more molecules?

• 1 mole H₂O

• 1 mole Al(OH)₃

• 1 mole NaCl

• They are all the same

What is the Molar mass of one mole of Iron (Fe)?

• 55.93 amu

• 55.85 g

• 111.86 amu

• 111.86 g

What is the molar mass of one molecule of Nitrogen N₂?

• 14.01 amu

• 14.01 g

• 28.02 g

• 28.02 amu

Tags

NGSS.HS-PS1-1