Stoichiometry (Unit Conversions) Review

• 2:2

• 1:1

• 2:1

• 1:2

• 4:5

• 1:1

• 2:3

• 4:6

Tags

NGSS.HS-PS1-7

Tags

NGSS.HS-PS1-7

Given the reaction: 4Al + 3O₂ --> 2Al₂O₃
How many moles of Aluminum oxide do you have if you have 2 moles of Al?

• 3 mole
• 2 mole
• 1 mole
• 0.5 mole

Tags

NGSS.HS-PS1-7

4NH₃ + 5O₂-->4NO + 6H₂O
What is the total number of moles of H₂O produced when 12 mole of NH₃ is completely consumed?

• 15
• 18
• 20
• 24

Tags

NGSS.HS-PS1-7

6CO₂ + 6H₂O --> C₆H₁₂O₆ + 6O₂ 
What is the total number of moles of water needed to make 2.5 moles of C₆H₁₂O₆?

• 2.5
• 6
• 12
• 15

Tags

NGSS.MS-PS1-5

NGSS.MS-LS1-6

Calculate the number of moles of water molecules in 36 g of water.

(M_r: H₂O = 18)

(Higher Tier Question)

• 2 mol

• 0.5 mol

• 18 mol

• 16 mol

How many moles is 50g of CaCO₃?

(a)  

How many moles are in 16.94 g of water?

• 16.94 mol H₂O
• 0.9401 mol H₂O
• 305.3 mol H₂O
• 1.063 mol H₂O