Test Bank
TEST BANK
,Quantitative Chemical Analysis 9th Edition Harris Test Bank
Chapter 2 – Tools of the Trade 1
Multiple Choice
2-1 Safe, Ethical Handling of Chemicals and Waste
1. Which of the following statements are TRUE?
I Organic solvents, concentrated acids, and concentrated ammonia should be handled in a
fume hood.
II A respirator should be worn when handling organic solvents.
III All containers should be labeled to indicate what they contain.
IV Contact lenses are adequate to protect eyes from liquids and gases in the lab.
A) I and II
B) II and IV
C) I and III
D) III and IV
E) II and III
Answer: C
Easy
2. is a set of principles intended to help sustain a habitable planet.
A) Environmental chemistry
B) Analytical chemistry
C) Biological chemistry
D) Atmospheric chemistry
E) Green chemistry
Answer: E
Easy
2-2 The Lab Notebook
3. The fulfills the critical function of reporting what a researcher has
done and what they observed, and allows another researcher to repeat their work.
A) lab report
B) lab notebook
C) MSDS
D) project report
E) technical note
Answer: B
Easy
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,Chapter 2 – Tools of the Trade 2
4. Which of the following is NOT a good practice when keeping a laboratory notebook?
A) Use complete sentences when writing notes.
B) Write a balanced chemical equation for every reaction used.
C) Paste hard copies of important data into the notebook.
D) Record the names of computer files where programs and data are stored.
E) All of the above are good practices when keeping a laboratory notebook.
Answer: E
Easy
2-3 Analytical Balance
5. The mass of the empty receiving vessel used with an analytical balance is the:
A) linearity.
B) buoyancy.
C) readability.
D) tare.
E) tolerance.
Answer: D
Easy
6. is the upward force exerted on an object in a gaseous or liquid fluid. The
mass measured by an analytical balance in air is its actual mass.
A) buoyancy; heavier than
B) buoyancy; lighter than
C) electromagnetic force; heavier than
D) electromagnetic force; lighter than
E) tare; equal to
Answer: B
Intermediate
, Chapter 2 – Tools of the Trade 3
7. Which of the responses below are sources of weighing error?
I Weighing a sample that is warmer than ambient temperature.
II Cooling a sample in a desiccator prior to weighing.
III Periodically calibrating the balance.
IV The temperature of the balance changing over time.
A) I and II
B) I and III
C) II and IV
D) II and III
E) I and IV
Answer: E
Intermediate
2-4 Burets
8. Which scenario below has the lowest relative uncertainty?
A) Delivering 35.50 mL of titrant with a 50 +/− 0.05 mL class A buret.
B) Delivering 15.40 mL of titrant with a 50 +/− 0.05 mL class A buret.
C) Delivering 18.50 mL of titrant with a 25 +/−0.03 mL class A buret.
D) Delivering 5.40 mL of titrant with a 25 +/−0.03 mL class A buret.
E) Delivering 97.30 mL of titrant with a 100 +/−0.10 mL class A buret.
Answer: E (0.10% relative uncertainty)
Hard
9. A student prepares a solution using a 1 L volumetric flask. When he finishes, the
meniscus is above the calibration mark on the flask neck. The concentration of the solution is:
A) less than calculated.
B) greater than calculated.
C) unchanged.
D) irrelevant.
E) impossible to predict.
Answer: A
Intermediate
TEST BANK
,Quantitative Chemical Analysis 9th Edition Harris Test Bank
Chapter 2 – Tools of the Trade 1
Multiple Choice
2-1 Safe, Ethical Handling of Chemicals and Waste
1. Which of the following statements are TRUE?
I Organic solvents, concentrated acids, and concentrated ammonia should be handled in a
fume hood.
II A respirator should be worn when handling organic solvents.
III All containers should be labeled to indicate what they contain.
IV Contact lenses are adequate to protect eyes from liquids and gases in the lab.
A) I and II
B) II and IV
C) I and III
D) III and IV
E) II and III
Answer: C
Easy
2. is a set of principles intended to help sustain a habitable planet.
A) Environmental chemistry
B) Analytical chemistry
C) Biological chemistry
D) Atmospheric chemistry
E) Green chemistry
Answer: E
Easy
2-2 The Lab Notebook
3. The fulfills the critical function of reporting what a researcher has
done and what they observed, and allows another researcher to repeat their work.
A) lab report
B) lab notebook
C) MSDS
D) project report
E) technical note
Answer: B
Easy
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,Chapter 2 – Tools of the Trade 2
4. Which of the following is NOT a good practice when keeping a laboratory notebook?
A) Use complete sentences when writing notes.
B) Write a balanced chemical equation for every reaction used.
C) Paste hard copies of important data into the notebook.
D) Record the names of computer files where programs and data are stored.
E) All of the above are good practices when keeping a laboratory notebook.
Answer: E
Easy
2-3 Analytical Balance
5. The mass of the empty receiving vessel used with an analytical balance is the:
A) linearity.
B) buoyancy.
C) readability.
D) tare.
E) tolerance.
Answer: D
Easy
6. is the upward force exerted on an object in a gaseous or liquid fluid. The
mass measured by an analytical balance in air is its actual mass.
A) buoyancy; heavier than
B) buoyancy; lighter than
C) electromagnetic force; heavier than
D) electromagnetic force; lighter than
E) tare; equal to
Answer: B
Intermediate
, Chapter 2 – Tools of the Trade 3
7. Which of the responses below are sources of weighing error?
I Weighing a sample that is warmer than ambient temperature.
II Cooling a sample in a desiccator prior to weighing.
III Periodically calibrating the balance.
IV The temperature of the balance changing over time.
A) I and II
B) I and III
C) II and IV
D) II and III
E) I and IV
Answer: E
Intermediate
2-4 Burets
8. Which scenario below has the lowest relative uncertainty?
A) Delivering 35.50 mL of titrant with a 50 +/− 0.05 mL class A buret.
B) Delivering 15.40 mL of titrant with a 50 +/− 0.05 mL class A buret.
C) Delivering 18.50 mL of titrant with a 25 +/−0.03 mL class A buret.
D) Delivering 5.40 mL of titrant with a 25 +/−0.03 mL class A buret.
E) Delivering 97.30 mL of titrant with a 100 +/−0.10 mL class A buret.
Answer: E (0.10% relative uncertainty)
Hard
9. A student prepares a solution using a 1 L volumetric flask. When he finishes, the
meniscus is above the calibration mark on the flask neck. The concentration of the solution is:
A) less than calculated.
B) greater than calculated.
C) unchanged.
D) irrelevant.
E) impossible to predict.
Answer: A
Intermediate
