CHEM 162 EXPERIMENT 5 SPECTROCHEMICAL
SERIES CERTIFICATION EVALUATION TEST 2026
FULL QUESTIONS AND CORRECT ANSWERS
ALREADY PASSED GRADED A+
◉ you make a solution of 0.1 M NaOH and accidentally spill the
solution, covering your gloved hand and onto your arm. Your wrist
was exposed, and the solution came into direct contact with your
skin. What should you do. Answer: remove affected clothing and
rinse skin with water for 15 minutes
◉ you are taking an evening lab session and want to bring a snack to
help you make it through the evening. When should you be allowed
to have food at the bench top in the lab?
a. if the experimental work is over and cleaned up
b. at the beginning because it is dinner time and being a student is
exhausting
c. only if the food remains the students backpack while at the bench
top
d. never
e. never, unless you have a tendency to become hypoglycemic, then
you are allowed to eat at the bench to prevent health issues. Answer:
d
, ◉ Accuracy. Answer: how close a measurement is to the true value
◉ Precision. Answer: a measure of how close a series of
measurements are to one another
◉ all 5 darts in middle of bullseye. Answer: both accurate and
precise
◉ all 5 darts in upper left of bullseye. Answer: precise but not
accurate
◉ 5 darts spread out but near center of bullseye. Answer: accurate
but not precise
◉ darts spread all around edges of bullseye. Answer: neither
accurate nor precise
◉ systematic/random error arises from a flaw in the equipment or
in the experimental design. This type of error can/cannot be
detected and corrected. Answer: systematic, can
◉ examples of systematic error. Answer: -cloth of measuring tape is
stretched out
SERIES CERTIFICATION EVALUATION TEST 2026
FULL QUESTIONS AND CORRECT ANSWERS
ALREADY PASSED GRADED A+
◉ you make a solution of 0.1 M NaOH and accidentally spill the
solution, covering your gloved hand and onto your arm. Your wrist
was exposed, and the solution came into direct contact with your
skin. What should you do. Answer: remove affected clothing and
rinse skin with water for 15 minutes
◉ you are taking an evening lab session and want to bring a snack to
help you make it through the evening. When should you be allowed
to have food at the bench top in the lab?
a. if the experimental work is over and cleaned up
b. at the beginning because it is dinner time and being a student is
exhausting
c. only if the food remains the students backpack while at the bench
top
d. never
e. never, unless you have a tendency to become hypoglycemic, then
you are allowed to eat at the bench to prevent health issues. Answer:
d
, ◉ Accuracy. Answer: how close a measurement is to the true value
◉ Precision. Answer: a measure of how close a series of
measurements are to one another
◉ all 5 darts in middle of bullseye. Answer: both accurate and
precise
◉ all 5 darts in upper left of bullseye. Answer: precise but not
accurate
◉ 5 darts spread out but near center of bullseye. Answer: accurate
but not precise
◉ darts spread all around edges of bullseye. Answer: neither
accurate nor precise
◉ systematic/random error arises from a flaw in the equipment or
in the experimental design. This type of error can/cannot be
detected and corrected. Answer: systematic, can
◉ examples of systematic error. Answer: -cloth of measuring tape is
stretched out
