For a particular set of reaction conditions, the actual yield is the quantity of desired product made in a reaction. Some examples of reactions with their desired products are shown below. Using your knowledge of chemistry, describe how the actual yield in a reaction could be determined. Your answer should include experimental procedures that could be used to determine the quantity of product made in reactions such as the examples shown in the table.

Scottish Highers Chemistry Open Ended Questions: For a particular set of reaction

For a particular set of reaction conditions, the actual yield is the quantity of desired product made in a reaction - Scottish Highers Chemistry - Question 9 - 2022

Question 9

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For a particular set of reaction conditions, the actual yield is the quantity of desired product made in a reaction. Some examples of reactions with their desired p... show full transcript

Worked Solution & Example Answer:For a particular set of reaction conditions, the actual yield is the quantity of desired product made in a reaction - Scottish Highers Chemistry - Question 9 - 2022

Step 1

Describe how the actual yield in a reaction could be determined.

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Answer

To determine the actual yield of a reaction, several experimental procedures can be followed:

1. Setting Up the Reaction

Select the appropriate reactants and ensure that the reaction conditions (temperature, pressure, etc.) are controlled.
Prepare a suitable amount of reactants based on the stoichiometry of the reaction.

2. Conducting the Reaction

Carry out the reaction in a controlled environment, allowing it to proceed to completion or until no further product is formed.

3. Isolation of the Product

After the reaction is complete, isolate the desired product. This can be done through methods such as filtration, evaporation, or distillation, depending on the state and properties of the product.

4. Measuring the Yield

Weigh the isolated product using a suitable balance to determine its mass.
This measurement gives the actual yield of the product.

5. Calculating the Yield Percentage

To assess the efficiency of the reaction, compare the actual yield to the theoretical yield (calculated based on initial amounts of reactants). This can be calculated using:

$ext{Percentage Yield} = rac{ ext{Actual Yield}}{ ext{Theoretical Yield}} imes 100$

6. Reporting Results

Record and analyze the results, discussing any discrepancies between the actual and theoretical yields and potential sources of error in the experimental procedure.