Density and Treatment of Data
Dang Quang Nguyen
Chemistry 1A Spring 2020 September 21, 2020
Objective/Purpose
In this laboratory, we perform three experiments. First, we will determine the density of a
solid. Second, we will calibrate the volume of o pipette. Finally, we use the calibrated
pipette to determine the density of an unknows liquid.
Theoretical
This section includes background information necessary to complete the lab.
Include all
mathematical formulas, as well as all chemical reactions occurring in the experiment.
There is no need to explain the Chemical equations or the Mathematical Equations.
Example:
Data
Table 1:
Determination of the Density of a metal
Trial 1
Trial 2
Trial 3
Mass of solid (g)
17.5211
17.5211
17.5211
Volume of water and solid (mL)
54.9
55.2
56.0
Volume of Water (mL)
49.8
49.2
49.9
Volume of Solid (mL)
5.1
6.0
6.1
Density of Solid (g/mL)
3.4
3.0
2.9
Table 2:
Calibration of Pipette
Trial 1
Trial 2
Trial 3
Mass of flask + H
2
O (g)
59.394
69.120
78.893
Mass of flask (g)
49.593
59.394
69.120
Mass of H
2
O (g)
9.801
9.726
9.773
Temperature of water (
o
C)
23.8
23.8
23.8
