Lab Exam (Chem 1020) Questions With Complete Solutions
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Course
Chem 1020
Institution
University Of New England (UNE
)
mass correct answer: the amount of matter in the object
weight correct answer: the force of gravity on the object
volume correct answer: length in three dimensions
accuracy correct answer: how close a measurement is to the true value
precision correct answer: how close the measurem...
Lab Exam (Chem 1020) Questions
With Complete Solutions
mass correct answer: the amount of matter in the object
weight correct answer: the force of gravity on the object
volume correct answer: length in three dimensions
accuracy correct answer: how close a measurement is to the true
value
precision correct answer: how close the measurements are to
one another
acid correct answer: something that produces hydrogen ions (or
protons) in a solution
base correct answer: something that produces hydroxide ions in
a solution
monoprotic acid correct answer: donates one proton (or
hydrogen atom) in solution
diprotic acid correct answer: donates two protons
triprotic acid correct answer: donates three protons
, indicator correct answer: a dye whose color depends on the
acidity of the solution it is in
hydrate correct answer: an ionic compound that contains a
specific number of water molecules for each formula unit
Law of Definite Proportions correct answer: a compound is
always made up of the same relative masses of the elements that
compose it
Hydrate correct answer: ionic compound that has water as an
integral part of its molecular structure
limiting reactant correct answer: determines the maximum
amount of product that can be formed (the theoretical yield)
mass (g)/volume (mL) correct answer: Density
(Actual/theoretical) x 100% correct answer: Percent Yield
precipitate correct answer: mixing two clear solutions
containing dissolved ionic reactants results in the formation of a
solid product insoluble in water
aqueous correct answer: substance is soluble and dissolves in
water
spectator ions correct answer: do not participate in the overall
reaction
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