Percent Yield

If 5.2 grams of Mn(SO₄)₂ are actually formed in the lab, what is the percent yield?

The calculated number of grams for Mn(SO₄)₂ is 6.30 grams

• 37%

• 48%

• 53%

• 83%

Tags

NGSS.HS-PS1-7

Reactant and products might adhere to containers causing actual yield to be less than theoretical yield.

• true

• false

Competing reactions might occur forming other products causing your actual yield to be less than your theoretical yield.

• true

• false

Some product can be transformed completely into energy causing your actual yield to be less than your theoretical yield.

• true

• false

Tags

NGSS.HS-PS1-4

Some product may be lost during filtering causing your actual yield to be less than your theoretical yield.

• true

• false

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

In the balanced reaction below, 9.8 g of benzene, C₆H_6, reacts with excess HNO₃ resulting in 1.0 g of H₂O. What is the percentage yield?

Molar mass (g/mol): C₆H₆ = 78 HNO₃= 63 C₆H₅NO₂= 123 H₂O = 18

C₆H₆ + HNO₃ → C₆H₅NO₂ + H₂O

• 22%

• 44%

• 12%

• 85%

Tags

NGSS.HS-PS1-7