Chemical Quantities Review

Which has more molecules?

• mole H₂O

• mole Al(OH)₃

• mole NaCl

• There are all the same

What is the unit for molar mass?

• amu

• g

• g/mol

What is the molar mass of CO₂?

• 44

• 32

• 16

• 56

Moles of Al₂O₃ in 40g

• 40%

• 0.39

• 4080

• 2.55

Molar mass of CaCO₃

• 100

• 100g

• 50

• 50g

What number must we use to convert between particles and moles?

• Avocado's Number

• The speed of light

• Avogadro's Number

• The mass of the compound

Tags

NGSS.HS-PS1-7

Find the number of atoms in 0.5 mole of aluminium.

• 3.01x10²³

• 3.01x10²²

• 6.02x10²³

• 6.02x10²²

Tags

NGSS.HS-PS1-7

• 0.83 mol

• 1.204 mol

• none of the above

How many liters are in 3.4 moles of a gas?

• 0.15 L

• 6.59 L

• 3.4 L

• 76.16 L