1|Page
Chemistry 101 Final Exam Ivy Tech Newest
2025/2026 Complete All 100 Questions And
Correct Detailed Answers (Verified Answers)
|Already Graded A+||Brand New Version!!
When should you NOT wear gloves in the lab setting?
a. When weighing our reagents at the balances
b. When entering in data on your laptop
c. When handling clean glassware
d. When writing notes on scratch paper using a pen and
paper - .....ANSWER ...✔✔ b and d
*also should not wear gloves when opening doors
General glove rules - .....ANSWER ...✔✔ - you should
never reuse gloves
- dispose of gloves if they are heavily contaminated
- dispose of gloves if they are torn
- dispose of gloves in the glove hazardous waste
container
- gloves must be worn at all times while handling
chemicals or glassware
- do not wear gloves outside of lab
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You make a solution of 0.1M 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 ...✔✔ let your TA know and wash your
skin under running water for at least 15 minutes
When should goggles be worn in lab? - .....ANSWER
...✔✔ The whole time you are in lab
You are taking an evening laboratory session and want
to bring a snack to help you make it though 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 in 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. Never
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Accuracy - .....ANSWER ...✔✔ A measure of how
close a measurement is to the true value of the quantity
measured.
Precision - .....ANSWER ...✔✔ A measure of how
close a series of measurements are to one another.
Systematic error arises from a flaw in the equipment or
in the experimental design. This type of error can be
detected and corrected. It leads to predictable results.
Provide several examples. - .....ANSWER ...✔✔ - a
scale that is improperly calibrated and always reads 2.3
grams heavier than the object actually is
- a stretched out measuring tape that always reads
values lower than the true value.
Random error arises from uncontrolled, often
uncontrollable, variables in an experiment which has
equal chance of being positive and negative. This type of
error cannot be detected or corrected for. It leads to
unpredictable results. Results will likely cluster around
true value. Provide several examples. - .....ANSWER
...✔✔ - wind speed might speed up or slow down at
unpredictable times
- any measurement between 2 markings because
different people will read the measurement differently
Chemistry 101 Final Exam Ivy Tech Newest
2025/2026 Complete All 100 Questions And
Correct Detailed Answers (Verified Answers)
|Already Graded A+||Brand New Version!!
When should you NOT wear gloves in the lab setting?
a. When weighing our reagents at the balances
b. When entering in data on your laptop
c. When handling clean glassware
d. When writing notes on scratch paper using a pen and
paper - .....ANSWER ...✔✔ b and d
*also should not wear gloves when opening doors
General glove rules - .....ANSWER ...✔✔ - you should
never reuse gloves
- dispose of gloves if they are heavily contaminated
- dispose of gloves if they are torn
- dispose of gloves in the glove hazardous waste
container
- gloves must be worn at all times while handling
chemicals or glassware
- do not wear gloves outside of lab
,2|Page
You make a solution of 0.1M 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 ...✔✔ let your TA know and wash your
skin under running water for at least 15 minutes
When should goggles be worn in lab? - .....ANSWER
...✔✔ The whole time you are in lab
You are taking an evening laboratory session and want
to bring a snack to help you make it though 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 in 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. Never
, 3|Page
Accuracy - .....ANSWER ...✔✔ A measure of how
close a measurement is to the true value of the quantity
measured.
Precision - .....ANSWER ...✔✔ A measure of how
close a series of measurements are to one another.
Systematic error arises from a flaw in the equipment or
in the experimental design. This type of error can be
detected and corrected. It leads to predictable results.
Provide several examples. - .....ANSWER ...✔✔ - a
scale that is improperly calibrated and always reads 2.3
grams heavier than the object actually is
- a stretched out measuring tape that always reads
values lower than the true value.
Random error arises from uncontrolled, often
uncontrollable, variables in an experiment which has
equal chance of being positive and negative. This type of
error cannot be detected or corrected for. It leads to
unpredictable results. Results will likely cluster around
true value. Provide several examples. - .....ANSWER
...✔✔ - wind speed might speed up or slow down at
unpredictable times
- any measurement between 2 markings because
different people will read the measurement differently
