Chem 1020 Lab Final Questions With
Complete Solutions
Mass correct answer: the amount of matter in the object and is
independent of where the object is. (Exp.1)
Weight correct answer: The force of gravity on the object and is
dependent of where the object is. (Exp.1)
Volume correct answer: Length is 3 dimensions. (Exp.1)
Density correct answer: d=mass/volume in g/mL (Exp.1)
Experiment 1 correct answer: Involves finding the density of a
pre-1983 penny, a post 1983 penny, an unknown liquid, and an
unknown solid. Measuring the pennies with a meter stick, ruler,
and caliper.
Significant Figures correct answer: Includes all of the digits in
the number that you know with certainty plus one final digit that
you estimate
Accuracy correct answer: Refers to how close a measurement is
to the true value
Precision correct answer: How close the measurements are to
one another
, Displacement Method correct answer: Submerging a solid in
water to find its volume.
Law of Definite Proportions correct answer: A chemical
compound always contains its component elements in a fixed
ration
Hydrate correct answer: Ionic compounds that have water as an
integral part of their molecular structure, and this water is
present as a definite fixed mass percent of the same. (not a wet
compound, water is incorporated in chemical bonding).
Mono correct answer: one
Di correct answer: two
Tri correct answer: three
tetra correct answer: four
penta correct answer: five
hexa correct answer: six
hepta correct answer: seven
octa correct answer: eight
nona correct answer: nine
deca correct answer: ten
Complete Solutions
Mass correct answer: the amount of matter in the object and is
independent of where the object is. (Exp.1)
Weight correct answer: The force of gravity on the object and is
dependent of where the object is. (Exp.1)
Volume correct answer: Length is 3 dimensions. (Exp.1)
Density correct answer: d=mass/volume in g/mL (Exp.1)
Experiment 1 correct answer: Involves finding the density of a
pre-1983 penny, a post 1983 penny, an unknown liquid, and an
unknown solid. Measuring the pennies with a meter stick, ruler,
and caliper.
Significant Figures correct answer: Includes all of the digits in
the number that you know with certainty plus one final digit that
you estimate
Accuracy correct answer: Refers to how close a measurement is
to the true value
Precision correct answer: How close the measurements are to
one another
, Displacement Method correct answer: Submerging a solid in
water to find its volume.
Law of Definite Proportions correct answer: A chemical
compound always contains its component elements in a fixed
ration
Hydrate correct answer: Ionic compounds that have water as an
integral part of their molecular structure, and this water is
present as a definite fixed mass percent of the same. (not a wet
compound, water is incorporated in chemical bonding).
Mono correct answer: one
Di correct answer: two
Tri correct answer: three
tetra correct answer: four
penta correct answer: five
hexa correct answer: six
hepta correct answer: seven
octa correct answer: eight
nona correct answer: nine
deca correct answer: ten
