Do now #24: Intro to Stoichiometry

Mole in Chemistry is a(an)_______.

• unit
• animal
• number equals to 6.02
• number equals to 12

What is the molar mass of NaOH?

• 368 g/mole 
• 40 g/mole
• 57 g/mole
• 23 g/mole

What is the mass of one mole of AuCl₃?

• 96g
• 130g
• 232.5g
• 303.5g

36.0 g of Be contains how many moles?

• 0.25 mol
• 4.0 mol
• 45 mol
• 320 mol

4.0 moles of H₂O would have what mass?

• 72 g
• 23 g
• 68 g
• 4.5 g

Tags

NGSS.HS-PS1-7

How many grams are in 88.1 moles of magnesium?

• 2141 g
• 0.3 g
• 30 g
• 3.6 g

Tags

NGSS.HS-PS1-7

How many grams are in 1.2 x 10²⁴ molecules of CO?

• 28 grams
• 56 grams
• 6.02 grams
• 1.2 grams

Tags

NGSS.HS-PS1-7

How many moles are in 15 grams of lithium?

• 0.5 moles
• 104.1 moles
• 2.2 moles
• 50 moles

What are the units for molar mass?

• grams
• amu
• grams/mole
• liters

The number 6.02 x 10²³ is ______.

• molar mass
• molecules
• Avogadro's number
• hydrate