CHEM 103 Lab Exam | Verified Exam Questions and Answers | Latest
Updated Study Material 2026
Question:
When making observations, what are the things you should describe?
Answer:
smell, appearance, and state of matter of chemicals before and after the reaction, how long the reaction
occurred, and names of chemicals
Question:
What is the density of a substance?
Answer:
The amount of matter contained in a specific sized sample of that substance; mass per unit of volume
Question:
Will the density of a given substance always be the same despite the volume (as long as the are under the
same specific set of conditions)?
Answer:
yes
Question:
Equation for density
Answer:
mass divided by volume (g/mL)
Question:
1 mL is equal to how many cubic cm?
Answer:
1
Question:
Density of pure water
Answer:
1.00 g/mL
, Question:
Equation for volume
Answer:
length x width x height
Question:
What is the displacement method?
Answer:
the volume of an irregularly shaped object can be measured indirectly by observing the amount of liquid
it displaces in a graduated cylinder.
Question:
What is decantation?
Answer:
a process of separating a solid residue (precipitate) from a liquid (the supernate) by gently pouring off the
liquid without disturbing the solid that has settled to the bottom
Question:
What is filtration?
Answer:
a process of separating a solid from a liquid by using a filter through which the liquid, but not the solid,
can pass. To speed up the process, suction can be used make it faster by placing a filter in the bottom of a
Buchner funnel (vacuum filtration).
Question:
What is a piece of glassware designed to accurately measure volumes of liquids?
Answer:
graduated cylinder
Question:
What is the curved surface of a graduated cylinder?
Answer:
meniscus
Updated Study Material 2026
Question:
When making observations, what are the things you should describe?
Answer:
smell, appearance, and state of matter of chemicals before and after the reaction, how long the reaction
occurred, and names of chemicals
Question:
What is the density of a substance?
Answer:
The amount of matter contained in a specific sized sample of that substance; mass per unit of volume
Question:
Will the density of a given substance always be the same despite the volume (as long as the are under the
same specific set of conditions)?
Answer:
yes
Question:
Equation for density
Answer:
mass divided by volume (g/mL)
Question:
1 mL is equal to how many cubic cm?
Answer:
1
Question:
Density of pure water
Answer:
1.00 g/mL
, Question:
Equation for volume
Answer:
length x width x height
Question:
What is the displacement method?
Answer:
the volume of an irregularly shaped object can be measured indirectly by observing the amount of liquid
it displaces in a graduated cylinder.
Question:
What is decantation?
Answer:
a process of separating a solid residue (precipitate) from a liquid (the supernate) by gently pouring off the
liquid without disturbing the solid that has settled to the bottom
Question:
What is filtration?
Answer:
a process of separating a solid from a liquid by using a filter through which the liquid, but not the solid,
can pass. To speed up the process, suction can be used make it faster by placing a filter in the bottom of a
Buchner funnel (vacuum filtration).
Question:
What is a piece of glassware designed to accurately measure volumes of liquids?
Answer:
graduated cylinder
Question:
What is the curved surface of a graduated cylinder?
Answer:
meniscus
