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Understanding Yields in Chemistry

Authored by Megersa Bayisa

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10th Grade

Understanding Yields in Chemistry
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula to calculate actual yield?

Actual Yield = (Actual Amount Obtained / Theoretical Yield) x 100

Actual Yield = Actual Amount Obtained + Theoretical Yield

Actual Yield = Theoretical Yield - Actual Amount Obtained

Actual Yield = (Theoretical Yield / Actual Amount Obtained) x 100

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a reaction produces 20 grams of product, what is the actual yield?

20 grams

25 grams

15 grams

30 grams

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define theoretical yield in your own words.

Theoretical yield is the predicted maximum quantity of product obtainable from a reaction, calculated from the amounts of reactants used.

Theoretical yield refers to the minimum quantity of product expected from a reaction.

Theoretical yield is the actual amount of product produced in a reaction.

Theoretical yield is the amount of reactants needed to start a reaction.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you determine the theoretical yield of a reaction?

Theoretical yield is calculated based on the limiting reactant and stoichiometry of the balanced equation.

Theoretical yield can be calculated by measuring the temperature of the reaction.

Theoretical yield is always equal to the actual yield of the reaction.

Theoretical yield is determined by the total amount of reactants used.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the percentage yield formula?

Percentage Yield = (Actual Yield + Theoretical Yield) x 100

Percentage Yield = (Actual Yield - Theoretical Yield) x 100

Percentage Yield = (Actual Yield / Theoretical Yield) x 100

Percentage Yield = (Theoretical Yield / Actual Yield) x 100

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the theoretical yield is 50 grams and the actual yield is 40 grams, what is the percentage yield?

60%

80%

100%

90%

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain why actual yield can be less than theoretical yield.

Theoretical yield is always achieved in every reaction.

Actual yield is determined by the temperature of the reaction.

Actual yield is often less than theoretical yield due to inefficiencies in the reaction process.

Actual yield is higher due to excess reactants.

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