Percent Yield Practice

When reacting Na with Cl₂, we calculated that the theoretical yield should be 12.5 grams. Our actual yield was 13.0 grams. What is the percent yield?

• 100%
• 104%
• 96%
• 1.04

Tags

NGSS.HS-PS1-7

2Fe₂O₃  +  C  →  Fe  +  3CO₂
You add 28 grams of carbon. You find the actual yield to be 181.2 grams of CO₂. What is the percent yield of CO₂? (Hint: calculate theoretical yield of CO₂ first)

• 15.8%
• 209.2%
• 6435%
• 15.5

Tags

NGSS.HS-PS1-7

Theoretical yield = 73g
Actual yield = 62g
Calculate the percent yield.

• 1.16%
• 116%
• 85%
• 76%

Tags

NGSS.HS-PS1-7

Percent yield = 100%
Theoretical yield = 88 grams
What is your actual yield?

• 88 grams
• 88%
• 100 grams
• 22%

Tags

NGSS.HS-PS1-7

Your percent yield is 80%. The actual amount of product produced was 29.1 grams. What is the theoretical yield?

• 25.2 grams
• 37.3 grams
• 37.1 grams
• 36.3 grams

Tags

NGSS.HS-PS1-7

Zn + 2HCl → ZnCl​₂ ​​+ H​₂​​
15 grams of HCl should theoretically produce 0.42 grams of H₂. The reaction actually produced 0.15 grams of H₂. What is the percent yield of H₂?

• 2.8%
• 280%
• 1%
• 36%

Tags

NGSS.HS-PS1-7

Which of the following do you get through measuring its mass? (No calculations)

• percent yield
• theoretical yield
• actual yield
• limiting reagent

Tags

NGSS.HS-PS1-7

11.

LiOH + KCl → LiCl + KOH

b) I actually produced 6 grams of lithium chloride and I began this reaction with 20.0 grams of lithium hydroxide. What is my percent yield?

• 16.9%

• 5.91%

• 1.88%

• 12.3%

Tags

NGSS.HS-PS1-7

In a lab, a scientist calculate he should produce 12.3 grams of product in his experiment. When he is finished collecting his product it weighs 10.1 grams. What is his percent yield?

• 82%
• 0.82%
• 10.1 %
• 100%

Tags

NGSS.HS-PS1-7

If 10.5g of Na₃N is decomposed, calculate the theoretical mass of sodium that should be produced. If only 2.84g of sodium is actually collected, what is the percent yield?

2Na₃N → 6Na + N₂

• 77%

• 65%

• 33%

• 54%

Tags

NGSS.HS-PS1-7