Quizizz Lesson: Unit 7 Part 5

Quizizz Lesson: Unit 7 Part 5

Stoichiometry

Multiple Choice

What is the molar mass of AlCl₃?

• 133.3 g/mol

• 187.1 g/mol

• 62.4 g/mol

• 35.45 g/mol

Multiple Choice

What is the mass of 0.45 moles of AlCl₃?

• 296.2 g

• 3.37 x 10^-3 g

• 60.0 g

• 152.2 g

Multiple Choice

How many moles would be present in a 452 g sample of AlCl₃?

• 0.29 moles

• 3.39 moles

• 1.17 moles

• 2.34 moles

Multiple Choice

Using the balanced equation, how many moles of AlCl₃ would need to be reacted to produce 4.5 moles of Al?

• 2.25 moles of AlCl₃

• 4.5 moles of AlCl₃

• 3.0 moles of AlCl₃

• 6.75 moles of AlCl₃

The 283.9 is a typo. It should read 142.0 g. The answer is still correct.

Multiple Choice

Using the balanced equation pictured; how many grams N₂ are required to produce 10 g of NH₃?

• 8.23 g N_2

• 16.46 g N₂

• 4.12 g N₂

• 32.92 g N₂