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Portage Learning CHEM 121 Actual Lab
Report 1 Template and Guide 2026/2027 |
Equipment, Safety, Mass & Volume
Measurement | Pass Guarantee
Q001: A student needs to measure 17.4 mL of a liquid for a titration. Which piece
of glassware provides the appropriate precision?
Options:
A. 50 mL beaker
B. 25 mL graduated cylinder
C. 25 mL volumetric pipette - CORRECT
D. 100 mL Erlenmeyer flask
(Correct Answer: C)
Q002: During a decantation procedure, you must separate a precipitate from its
supernatant without loss of solid. Which tool is best?
Options:
A. Glass stirring rod
B. Plastic wash bottle
C. Glass funnel with filter paper - CORRECT
D. 10 mL graduated cylinder
(Correct Answer: C)
Q003: An analytical balance displays 0.0000 g before weighing and 2.3456 g after.
How many significant figures are in the measured mass?
Options:
A. 3
, 2
B. 4
C. 5 - CORRECT
D. 6
(Correct Answer: C)
Q004: A 6 M HCl solution is to be diluted. Which safety item must be worn when
opening the concentrated acid bottle?
Options:
A. Safety goggles only
B. Nitrile gloves only
C. Lab coat, goggles, and nitrile gloves - CORRECT
D. Flame-resistant apron only
(Correct Answer: C)
Q005: You need to deliver 0.250 mL of a reagent. Which measuring device is most
appropriate?
Options:
A. 10 mL graduated cylinder
B. 1 mL volumetric pipette
C. 0.500 mL adjustable micropipette - CORRECT
D. 50 mL burette
(Correct Answer: C)
Q006: A student records a burette reading of 21.35 mL. The burette has markings
every 0.1 mL. To which decimal place should the reading be recorded?
Options:
A. 0.1 mL
B. 0.01 mL - CORRECT
Portage Learning CHEM 121 Actual Lab
Report 1 Template and Guide 2026/2027 |
Equipment, Safety, Mass & Volume
Measurement | Pass Guarantee
Q001: A student needs to measure 17.4 mL of a liquid for a titration. Which piece
of glassware provides the appropriate precision?
Options:
A. 50 mL beaker
B. 25 mL graduated cylinder
C. 25 mL volumetric pipette - CORRECT
D. 100 mL Erlenmeyer flask
(Correct Answer: C)
Q002: During a decantation procedure, you must separate a precipitate from its
supernatant without loss of solid. Which tool is best?
Options:
A. Glass stirring rod
B. Plastic wash bottle
C. Glass funnel with filter paper - CORRECT
D. 10 mL graduated cylinder
(Correct Answer: C)
Q003: An analytical balance displays 0.0000 g before weighing and 2.3456 g after.
How many significant figures are in the measured mass?
Options:
A. 3
, 2
B. 4
C. 5 - CORRECT
D. 6
(Correct Answer: C)
Q004: A 6 M HCl solution is to be diluted. Which safety item must be worn when
opening the concentrated acid bottle?
Options:
A. Safety goggles only
B. Nitrile gloves only
C. Lab coat, goggles, and nitrile gloves - CORRECT
D. Flame-resistant apron only
(Correct Answer: C)
Q005: You need to deliver 0.250 mL of a reagent. Which measuring device is most
appropriate?
Options:
A. 10 mL graduated cylinder
B. 1 mL volumetric pipette
C. 0.500 mL adjustable micropipette - CORRECT
D. 50 mL burette
(Correct Answer: C)
Q006: A student records a burette reading of 21.35 mL. The burette has markings
every 0.1 mL. To which decimal place should the reading be recorded?
Options:
A. 0.1 mL
B. 0.01 mL - CORRECT
