mole to mole stoichiometry

Fe₂O₃ + 3H₂ → 2Fe + 3H₂O

How many moles of iron can be made from  6 moles H₂? 

• 4 moles Fe

• 6 moles Fe

• 9 moles Fe

• 2 moles Fe

Tags

NGSS.HS-PS1-7

N₂ +  3H₂ → 2NH₃ 
How many moles of hydrogen are needed to react with 2 moles of nitrogen?

• 6
• 2
• 3
• 1

Tags

NGSS.HS-PS1-7

2H₂   +   O₂  →  2H₂O

How many moles of water can be produced if 6.5 moles H₂ are used?

• 4 moles

• 6.5 moles

• 16 moles

• 2 moles

Tags

NGSS.HS-PS1-7

Given the reaction: 4Al + 3O₂ --> 2Al₂O₃

How many moles of Aluminum oxide, Al₂O₃, can you produce if you have 2 moles of Al?

• 3 mole

• 2 mole

• 1 mole

• 0.5 mole

Tags

NGSS.HS-PS1-7

• 4 mol H₂O

• 6.032 mol H₂O

• 12.375mol H₂

• 96 mol H₂O

Tags

NGSS.HS-PS1-7

2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

How many moles of ethane (C₂H₆) are required to produce 13.5 moles of water from the above reaction?

• 4.5 mol C₂H₆

• 27 mol C₂H₆

• 40.5 mol C₂H₆

• 81 mol C₂H₆

Tags

NGSS.HS-PS1-7

What is the molar mass of MgCl?

• 24 g

• 35 g

• 59 g

• 94 g

3 Mg + 1 Fe₂O₃ → 3 MgO + 2 Fe; What is the Ratio

• 3:1:3:2

• 3:1:3:1

• 1:5:3:2

• 3:1:1:2

Tags

NGSS.HS-PS1-7

2 C₈H₁₈ + 25 O₂ → 18 H₂O + 16 CO₂

How many moles of water would be produced by burning (reacting) 8.15 moles of octance, C₈H₁₈, with oxygen from the air?

• 73.4 moles

• 16.3 moles

• 147 moles

• 18.0 moles

Tags

NGSS.HS-PS1-7

What is the molar mass of NaOH?

• 368 g/mole

• 40 g/mole

• 57 g/mole

Tags

NGSS.MS-PS1-1