Basic Titration Methods - Higher Difficulty Problems
Q. In a back titration, what is the first step?
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A.
Add excess titrant to the analyte
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B.
Measure the pH of the solution
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C.
Dilute the analyte solution
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D.
Add a color indicator
Solution
In a back titration, the first step is to add an excess of titrant to the analyte, followed by titrating the unreacted titrant.
Correct Answer: A — Add excess titrant to the analyte
Q. In a titration involving a strong acid and a strong base, what is the expected pH at the equivalence point?
Solution
At the equivalence point of a titration between a strong acid and a strong base, the pH is expected to be 7, indicating a neutral solution.
Correct Answer: A — 7
Q. What is the main advantage of using a burette in titration?
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A.
It allows for precise volume measurements
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B.
It can heat the solution
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C.
It automatically mixes the solutions
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D.
It changes color during the reaction
Solution
The main advantage of using a burette in titration is that it allows for precise volume measurements, which is crucial for accurate results.
Correct Answer: A — It allows for precise volume measurements
Q. Which type of titration would you use to determine the concentration of a weak acid?
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A.
Strong acid-strong base titration
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B.
Weak acid-strong base titration
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C.
Redox titration
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D.
Complexometric titration
Solution
To determine the concentration of a weak acid, a weak acid-strong base titration is typically used, as it provides a clear endpoint.
Correct Answer: B — Weak acid-strong base titration
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