CH - 120
Lab #1: Density
Andrew Buettner
Lab #1 Result tables:
pr2 Method Displacement
|
Bar |
Mass |
Volume |
Density |
Volume |
Density |
|
1 |
17.817g |
6.27cm3 |
2.84g/cm3 |
5.3 cm3 |
3.3g/cm3 |
|
2 |
6.537g |
2.26cm3 |
2.89g/cm3 |
2.4cm3 |
2.7cm3 |
Lab #1 Question:
Q: Which method is more accurate in determining the volume and density of a substance - pr2 method or displacement method?
A: In the case of this lab the pr2 method is more accurate as the results contain more significant digits.
Lab #2c Results:
% NaCl Content with water (H20)
|
|
4% |
8% |
12% |
16% |
Unknown |
|
Density |
1.02 g/cm3 |
1.05 g/cm3 |
1.09 g/cm3 |
1.11 g/cm3 |
1.04g/cm3 |
Lab #2c Question:
Q: What is the approximate NaCl percent content in the unknown solution?
A: The approximate content is 6.54%