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

3. Experimental Error

Types of Errors

Analytical Chemistry

3. Experimental Error

Types of Errors

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Multiple Choice

Which of the following is an example of analytical data in a laboratory setting?

The number of students in the class

The color of the laboratory walls

The brand of glassware used

The measured concentration of chloride ions in a water sample

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Verified step by step guidance

Step 1: Understand the concept of analytical data. Analytical data refers to quantitative or qualitative measurements obtained through scientific methods in a laboratory setting. It is used to analyze substances or materials.

Step 2: Evaluate the options provided in the problem. Analytical data must involve measurable or analyzable information relevant to the laboratory's purpose.

Step 3: Eliminate options that do not represent analytical data. For example, 'The number of students in the class,' 'The color of the laboratory walls,' and 'The brand of glassware used' are not measurements or analyzable data related to laboratory experiments.

Step 4: Identify the correct option. 'The measured concentration of chloride ions in a water sample' is an example of analytical data because it involves a quantitative measurement obtained through chemical analysis.

Step 5: Conclude that analytical data in a laboratory setting refers to measurable results obtained from experiments or analyses, such as concentrations, pH values, or absorbance readings.