Stoichiometry Review

What is the mole ratio between FeO and Al₂O₃?

• 1 mole FeO = 2 mole Al₂O₃

• 1 mole FeO = 3 mole Al₂O₃

• 3 mole FeO = 2 mole Al₂O₃

• 3 mole FeO = 1 mole Al₂O₃

N₂ + 3 H₂ --> 2 NH₃

Choose the correct set up to convert 36 L of NH₃ to L of H₂

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Ms. Piskor made aspirin in the lab. She was supposed to make 150 grams, but was only able to produce 87 grams.

Calculate the percent yield

• 58%

• 87%

• 150%

• 172%

How many moles of NO₃ are in 155 grams of NO₃?

• 1 mole NO₃

• 1.5 mole NO₃

• 2 mole NO₃

• 2.5 mole NO₃

How many grams of NO₃ are in 0.50 moles of NO₃?

• 19.8 grams

• 31.0 grams

• 99.5 grams

• 155 grams

Tags

NGSS.HS-PS1-7

How many moles of MgCl₂ are in 3.7 x 10²⁴ formula units of MgCl₂?

• 1.23

• 6.15

• 3.94

• 8.52

How many liters of Cl₂ are in 5 moles of Chlorine gas, Cl₂?

• 4.48

• 56

• 75

• 112

What is the molar mass of NO₃?

• 28 grams

• 58 grams

• 62 grams

• 90 grams

The quantitative relationship between the amount of reactants and products in a chemical reaction is called?

• mole ratio

• stoichiometry

• molar mass

• coefficient

Tags

NGSS.HS-PS1-7

You must convert grams to moles using molar mass to do stoichiometry.

• True

• False