Experiment
List all your step-by-step procedures for your mass, volume, and density determinations below. Where applicable, show all your calculations and remember to apply the significant figures rules.
Part I—Measuring Mass
1. Measuring Mass Directly:
Procedure:
Item Mass
A single penny
A 150 mL beaker
A nickel
A 100 mL graduated cylinder
A watch glass
2. Measuring Out a Substance (Indirect Measurement)
exactly 2.750 g of sodium chloride
Procedure:
exactly 5.000 g of calcium chloride
Procedure:
exactly 22.000 g of water
Procedure:
3. Determining Mass by Difference
50 mL of water in a graduated cylinder
Procedure:
Calculations:
1, 2, and 3 scoops of NaCl in succession using a spatula
Procedure:
Calculations:
a
1 scoop of CaCl2 before and after it sits out on the lab bench for 15 minutes, where it will absorb moisture from the air
Procedure:
Calculations:
Part II—Measuring Volume
1. Volume determination:
Measuring Device Volume
10 mL graduated cylinder
100 mL graduated cylinder
Liquid level in buret
Beaker
Erlenmeyer flask
2. Volume of a 25 × 150 mm test tube:
Calculations:
3. Volume of a golf ball:
Calculations:
4. Volume of about 20 pieces of zinc metal:
Procedure:
Calculations:
5. Volume of air in an empty rectangular box:
Procedure:
Calculations:
