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