CHM2046L Final Exam UF Spring 2025-2026 questions n answers -37.docx,
Exams of Advanced Education
True or False: If you are late to class, you can take the quiz after the lab is
over - ANSWERFalse
List 4 pieces of PPE (personal protective equipment) that must always be
worn in the lab - ANSWER- Safety goggles
- Lab coat
- Long pants/skirts
- No crop tops
- Long hair tied up
True or False: The volume of a mixture is always the same as the sum of the
individual volumes - ANSWERFalse
Ex. When mixing 10mL of rubbing alcohol with 10mL of water, the total
volume will be less than 20mL
, Is the mass of a mixture always the sum of the individual masses? How is that
different than volume? - ANSWERYes, due to the law of consideration of
mass, masses are additive. Volumes are not additive due to the different
molecular components of each liquid (size of molecules)
What is your GTA's name? - ANSWERKrystal Baez
Accuracy - ANSWERHow close a measurement is to the true/actual value
Precision - ANSWERHow close together, or common, the measurements are
How would you round a graduated cylinder measurement? - ANSWEREx. 2.65
How does TD dictate how glassware is used in the lab? - ANSWERTD = To
deliver a liquid
Ex. Pipettes, burets
How does TC dictate how glassware is used in the lab? - ANSWERTC = To
contain
Ex. Beaker, volumetric flask
Why are students expected to develop their own experimental procedures in
the chemistry lab? - ANSWERTo develop critical thinking skills and increase
their understanding of chemistry concepts
Random Error - ANSWERErrors cannot be fixed and therefore can only be
accounted for
Exams of Advanced Education
True or False: If you are late to class, you can take the quiz after the lab is
over - ANSWERFalse
List 4 pieces of PPE (personal protective equipment) that must always be
worn in the lab - ANSWER- Safety goggles
- Lab coat
- Long pants/skirts
- No crop tops
- Long hair tied up
True or False: The volume of a mixture is always the same as the sum of the
individual volumes - ANSWERFalse
Ex. When mixing 10mL of rubbing alcohol with 10mL of water, the total
volume will be less than 20mL
, Is the mass of a mixture always the sum of the individual masses? How is that
different than volume? - ANSWERYes, due to the law of consideration of
mass, masses are additive. Volumes are not additive due to the different
molecular components of each liquid (size of molecules)
What is your GTA's name? - ANSWERKrystal Baez
Accuracy - ANSWERHow close a measurement is to the true/actual value
Precision - ANSWERHow close together, or common, the measurements are
How would you round a graduated cylinder measurement? - ANSWEREx. 2.65
How does TD dictate how glassware is used in the lab? - ANSWERTD = To
deliver a liquid
Ex. Pipettes, burets
How does TC dictate how glassware is used in the lab? - ANSWERTC = To
contain
Ex. Beaker, volumetric flask
Why are students expected to develop their own experimental procedures in
the chemistry lab? - ANSWERTo develop critical thinking skills and increase
their understanding of chemistry concepts
Random Error - ANSWERErrors cannot be fixed and therefore can only be
accounted for
