Density of an Unknown Liquid, a Irregular-Shaped Solid, and a Regular-Shaped Solid

Part I: Density of Unknown Liquid

Trial 1
Trial 2
Trial 3
Mass of Empty 10 mL graduated cylinder (grams) 25.55 25.56 25.55
Volume of liquid (milliliters) 8.8 8.65 8.5
Mass of graduated cylinder and liquid (grams) 30.65 30.62 30.565
Part II: Density of Irregular-Shaped Solid
Mass of solid
(grams)
39.537 38.515 40.975
Volume of water (milliliters) 50.01 49.9 52.4
Volume of water and solid (milliliters) 54.9 54 57
Part III: Density of Regular-Shaped Solid
Mass of solid (grams)
27.7
27.71
26.8
Length of solid (centimeters)
5.26
5
4.5
Width of solid (centimeters)
3
4
3.5
Height of solid (centimeters)
2.5

3
2

Part I: Density of Unknown Liquid
1. Calculate the mass of the liquid for each trial. (Subtract the mass of the empty graduated cylinder from the mass of the graduated cylinder with liquid.)
Trial 1 30.65-25.55=5.10

Trial 2 30.62-25.56=5.060

Trial 3 30.565-25.55=5.015
2. Calculate the density of the unknown liquid for each trial. (Divide the mass of the liquid calculated above by the volume of the liquid.)
Trial 1: 5.1/8.8=0.58

Trial 2: 5.06/8.65=.58

Trial 3: 5.015/8.5=0.59

Part II: Density of Irregular-Shaped Solid
3. Calculate the volume of the irregular-shaped solid for each trial. (Subtract the volume of the water from the total volume of the water and solid.)
Trial 1: 54.9-50.01=4.89

Trial 2: 54-49.9=4.1

Trial 3: 57-52.4=4.6
4. Calculate the density of the irregular-shaped solid for each trial. (Divide the mass of the solid by the volume of the solid calculated above.)
Trial 1: 39.537/4.89=8.08

Trial 2: 38.515/4.1=9.4

Trial 3: 40.975/4.6=8.9
Part III: Density of Regular-Shaped Solid
5. Calculate the volume of the regular shaped solid for each trial.
(Multiply the length × width × height for each trial to get the volume in the unit cm3.)
Trial 1: 5.26 x 3 x 2.5= 39.5cm3

Trial 2:5 x 4 x 3 =30cm3

Trial 3: