What is the role of a back titration?

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Question: What is the role of a back titration?

Options:

To determine the concentration of a strong acid
To analyze a sample that is difficult to titrate directly
To measure the pH of a solution
To separate components in a mixture

Correct Answer: To analyze a sample that is difficult to titrate directly

Solution:

Back titration is used to analyze samples that are difficult to titrate directly, by adding an excess of titrant and then titrating the unreacted titrant.

What is the role of a back titration?

Practice Questions

What is the role of a back titration?

To determine the concentration of a strong acid
To analyze a sample that is difficult to titrate directly
To measure the pH of a solution
To separate components in a mixture

Questions & Step-by-Step Solutions

What is the role of a back titration?

Step 1: Understand that back titration is a method used when direct titration is hard to perform.
Step 2: Start by adding an excess amount of a known solution (called the titrant) to the sample you want to analyze.
Step 3: Allow the titrant to react with the sample completely.
Step 4: After the reaction, some of the titrant will be left unreacted because there was more titrant added than needed.
Step 5: Now, you need to find out how much of the titrant is left. To do this, you perform a second titration using another solution that will react with the leftover titrant.
Step 6: By measuring how much of the second solution you used, you can calculate how much titrant reacted with the sample.
Step 7: This information helps you determine the amount of the substance in your original sample.

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What is the role of a back titration?

What’s inside this PDF?

What is the role of a back titration?

Practice Questions

Questions & Step-by-Step Solutions

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