Table of contents

1. Chemical Measurements1h 50m
2. Tools of the Trade1h 17m
3. Experimental Error1h 52m
4 & 5. Statistics, Quality Assurance and Calibration Methods1h 57m
6. Chemical Equilibrium3h 41m
7. Activity and the Systematic Treatment of Equilibrium1h 0m
8. Monoprotic Acid-Base Equilibria1h 53m
9. Polyprotic Acid-Base Equilibria2h 17m
10. Acid-Base Titrations2h 37m
11. EDTA Titrations1h 34m
12. Advanced Topics in Equilibrium1h 16m
13. Fundamentals of Electrochemistry2h 19m
14. Electrodes and Potentiometry41m
15. Redox Titrations1h 14m
16. Electroanalytical Techniques57m
17. Fundamentals of Spectrophotometry50m

1. Chemical Measurements

Volumetric Analysis

Analytical Chemistry

1. Chemical Measurements

Volumetric Analysis

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Multiple Choice

In volumetric analysis, what is the default chart speed typically set to when recording titration curves using an automatic titrator?

0.5 cm/min

2 cm/min

10 cm/min

5 cm/min

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Verified step by step guidance

Understand the context of the problem: In volumetric analysis, titration curves are recorded using an automatic titrator to monitor changes in pH or conductivity as a titrant is added. The chart speed refers to the rate at which the titration curve is plotted on the recording device.

Review the typical settings for chart speed in automatic titrators. Chart speed is usually chosen based on the titration's duration and the precision required for the analysis. Faster speeds are used for quick titrations, while slower speeds are preferred for more detailed analysis.

Consider the default chart speed setting. Manufacturers of automatic titrators often set a default speed that balances clarity and efficiency for most titrations. This default speed is commonly used unless the user adjusts it for specific needs.

Compare the given options (0.5 cm/min, 2 cm/min, 10 cm/min, 5 cm/min) to typical default chart speeds. The default speed is usually moderate, not too slow or too fast, to ensure the titration curve is clear and interpretable.

Conclude that the correct answer corresponds to the most commonly used default chart speed in automatic titrators, which is typically 2 cm/min or 5 cm/min depending on the manufacturer and the titration method.