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Chem 1020 Lab Final Questions With Complete Solutions
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Chem 1020 Lab Final Questions With Complete Solutions
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Chem 1020 Lab Final Questions With CompleteSolutions
1). Mass
Ans: the amount of matter in the object and is independent of where the object is. (Exp.
1)
2). Weight
Ans: The force of gravity on the object and is dependent of where the object is. (Exp.1)
3). Volume
Ans: Length is 3 dimensions. (Exp.1)
4). Density
Ans: d=mass/volume in g/mL (Exp.1)
5). Experiment 1
Ans: 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.
6). Significant figures
Ans: Includes all of the digits in the number that you know with certainty plus one final
digit that you estimate
7). Accuracy
Ans: Refers to how close a measurement is to the true value
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, 8). Precision
Ans: How close the measurements are to one another
9). Displacement method
Ans: Submerging a solid in water to find its volume.
10). Law of definite proportions
Ans: A chemical compound always contains its component elements in a fixed ration
11). Hydrate
Ans: 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).
12). Mono
Ans: one
13). Di
Ans: two
14). Tri
Ans: three
15). Tetra
Ans: four
16). Penta
Ans: five
17). Hexa
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