1|Page
CHEM 123 LAB FINAL UBC |ACTUAL
EXAM QUESTIONS AND ANSWERS
2026 (A+)
ceramic tile - correct-answer -- for resting hot objects on to cool (protects bench
top)
- can also be placed under an Erlenmeyer flask during a titration to make it easier
to determine the end point
funnel - correct-answer -for quantitative transfer of solutions
weigh boat - correct-answer -used in weighing to hold the compound being
weighed
,2|Page
vials with plastic lids - correct-answer -- used to hold solutions to be tested in the
Microlab spectrophotometer
glass stir rod - correct-answer -used for mixing solutions
spatula - correct-answer -used to scoop out small amounts of solid chemicals for
weighing
watch glass - correct-answer -- used for weighing products and preventing foreign
objects from falling into a beaker during heating
- should be placed with the curved side down so any condensation drips back into
the beaker
pasteur pipette - correct-answer -used to deliver small amounts of liquid where
the quantity (volume) does not need to be known (not precise)
,3|Page
water bottle for deionized water - correct-answer -used to rinse items and can
also be used for standard solutions
drop dispenser - correct-answer -- used to hold liquids and has a knob that
controls the flow
- special tip is used to create drops
pH probe - correct-answer -- used to determine the pH in a solution by taking
electrochemical measurements between 2 electrodes within the probe
kim wipes - correct-answer -- used to clean vials before placing in the
spectrophotometer (Microlab) to avoid oil from fingers distorting the light beam
, 4|Page
drop counter - correct-answer -- has a sensor that counts the number of drops
coming out of the drop dispenser
- must be lined up with the drop dispenser
syringe - correct-answer -- used in kinetics lab to measure a volume of bleach to
be dispensed into a vial of dye
What parts of the EDF should be completed prior to coming to the lab? - correct-
answer -- research question
- hypothesis
- list of glassware/equipment needed and their purpose
- list of chemicals needed for the lab
- procedure of experiment
What parts of the EDF should be completed in the lab? - correct-answer --
observations
CHEM 123 LAB FINAL UBC |ACTUAL
EXAM QUESTIONS AND ANSWERS
2026 (A+)
ceramic tile - correct-answer -- for resting hot objects on to cool (protects bench
top)
- can also be placed under an Erlenmeyer flask during a titration to make it easier
to determine the end point
funnel - correct-answer -for quantitative transfer of solutions
weigh boat - correct-answer -used in weighing to hold the compound being
weighed
,2|Page
vials with plastic lids - correct-answer -- used to hold solutions to be tested in the
Microlab spectrophotometer
glass stir rod - correct-answer -used for mixing solutions
spatula - correct-answer -used to scoop out small amounts of solid chemicals for
weighing
watch glass - correct-answer -- used for weighing products and preventing foreign
objects from falling into a beaker during heating
- should be placed with the curved side down so any condensation drips back into
the beaker
pasteur pipette - correct-answer -used to deliver small amounts of liquid where
the quantity (volume) does not need to be known (not precise)
,3|Page
water bottle for deionized water - correct-answer -used to rinse items and can
also be used for standard solutions
drop dispenser - correct-answer -- used to hold liquids and has a knob that
controls the flow
- special tip is used to create drops
pH probe - correct-answer -- used to determine the pH in a solution by taking
electrochemical measurements between 2 electrodes within the probe
kim wipes - correct-answer -- used to clean vials before placing in the
spectrophotometer (Microlab) to avoid oil from fingers distorting the light beam
, 4|Page
drop counter - correct-answer -- has a sensor that counts the number of drops
coming out of the drop dispenser
- must be lined up with the drop dispenser
syringe - correct-answer -- used in kinetics lab to measure a volume of bleach to
be dispensed into a vial of dye
What parts of the EDF should be completed prior to coming to the lab? - correct-
answer -- research question
- hypothesis
- list of glassware/equipment needed and their purpose
- list of chemicals needed for the lab
- procedure of experiment
What parts of the EDF should be completed in the lab? - correct-answer --
observations
