Mass to Moles and Moles to Mass Using Mole Ratio

Using the following equation:
Fe₂O₃(s) + 3H₂(g) → 2Fe(s) + 3H₂O(l)
How many moles of iron can be made from  6 moles H₂? 

• 4 moles Fe

• 6 moles Fe

• 9 moles Fe

• 2 moles Fe

How many moles are in 22 g of argon? 

• 880 moles

• 0.55 moles

• 1.81 moles

• 5 moles

How many moles are in 9.8 grams of calcium? 

• 0.2 moles

• 4.1 moles

• 1 mole

• 392 moles

Tags

NGSS.HS-PS1-7

What is the mass of one mole of AuCl₃?

• 96g

• 130g

• 232.5g

• 303.5g

Using the balanced chemical equation: Mg + 2 HCl --> MgCl₂ + H₂ How many grams of MgCl₂ is produced if 4.67 moles of HCl react?

• 219 g MgCl₂

• 4.67 g MgCl₂

• 94 g MgCl₂

Tags

NGSS.HS-PS1-7

Using the balanced chemical equation: 4NH₃ + 3O₂ --> 2N₂ + 6H₂O Determine the amount of grams of N₂ is produced if 4.03 moles of NH₃ react?

• 28.0 g N₂

• 56.4 g N₂

• 2.02 g N₂

Tags

NGSS.HS-PS1-7

Using the balanced chemical equation: 2C₄H₁₀ + 13O₂ --> 10H₂O + 8CO₂ Calculate the number of grams of C₄H₁₀ needed to produce 5.12 moles of CO₂.

• 58.0 g C₄H₁₀

• 2.56 g C₄H₁₀

• 74.2 g C₄H₁₀

• 2 moles

• 3 moles

• 6 moles

• 10 moles

Tags

NGSS.HS-PS1-7

• 29.22 g

• 58.44 g

• 116.88 g

• 14.61 g

• 36 g

• 72 g

• 144 g

• 18 g