Percent Yield

The ______________ yield is the maximum amount of product possible in a reaction. This determines the amount of product that should be produced in a perfect setting

• Percent
• actual
• stoichiometry
• theoretical

Tags

NGSS.HS-PS1-6

When reacting Na with Cl₂, we calculated that the theoretical yield should be 13 grams. Our actual yield was 12.5 grams. What is the percent yield?

• 90.4%

• 104%

• 96.15%

• 1.04%

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

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

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

• true

• false

Tags

NGSS.HS-PS1-7

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

• true

• false

Tags

NGSS.HS-PS1-6

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

What is the equation to calculate percent yield?

• (Actual yield / Theoretical yield) x 100% = Percent yield

• (Theoretical yield / Actual yield) x 100% = Percent yield

• Mass (1 Mole / Molar mass) x 100% = Percent yield

• Mass x Speed x 100% = Percent yield

Na₂CO₃ + 2HCl <=> 2NaCl + CO₂ + H₂O

Billy performed the preceding chemical reaction using 76g of Na₂CO₃ and produced 48g of NaCl. This did not match his theoretical yield. What was Billy's percent yield?

• 50%

• 22%

• 48%

• 57%

Tags

NGSS.HS-PS1-7