Density of a Rubber Stopper
Purpose
The purpose of this experiment was to determine the density of an object by measuring its mass and volume.
Hypothesis
When the rubber stopper is dropped into the overflow can, the volume displaced (mL) will be equal to the number of grams of the rubber stopper. I think this will be the outcome because I learned before that 1g=1ml, so for every gram dropped into the overflow can, 1 ml should be displaced (the volume). Therefore I think the density of each rubber stopper would be 1g/ml.
Materials
- 5 different rubber stoppers
- Triple Beam Balance
- Graduated Cylinder
- Overflow Can
Procedure
1. Measure the mass, in grams, of a rubber stopper using the balance. Record the results on the data table on the back of the sheet.
2. Measure the volume of the rubber stopper, in mL, using the graduated cylinder or the overflow can. Then record your results.
3. Repeat steps 1 and 2 until all stopper have been measured.
4. Using the density formula, calculate the density for each stopper. Record on the data table.
5. Using graph paper, construct a straight line graph to show the relationship between mass and volume.
Observations and Data
Stopper #
(Order is from the smallest to largest mass)
Mass (g)
Volume Displace (mL)
Density (g/mL)
1
5.6g
5mL
1.12g/mL
2
7.7g
8mL
0.96g/mL
3
12.8g
11mL
1.16g/mL
4
25.2g
24mL
1.05g/mL
5
32.8g
30mL
1.09g/mL
Analysis
1. The average density of the rubber stoppers was 1.076g/ml. (1.12+0.96+1.16+1.05+1.09/5 = 5.38/5 = 1.076)
2. (Graph is on the back page)
3. (Calculations on graph) The slope of the relationship between mass and volume is 1.08g/ml.
4. The density of the stoppers were all different but they were very close to each other.
Discussion The experiment was done to determine the density of an object by measuring it's mass and volume. To do it, the mass of 5 different rubber stoppers was recorded using the triple beam balance. Then the overflow can was filled up to as far as it can so the rubber stoppers can be dropped
The purpose of this experiment was to determine the density of an object by measuring its mass and volume.
Hypothesis
When the rubber stopper is dropped into the overflow can, the volume displaced (mL) will be equal to the number of grams of the rubber stopper. I think this will be the outcome because I learned before that 1g=1ml, so for every gram dropped into the overflow can, 1 ml should be displaced (the volume). Therefore I think the density of each rubber stopper would be 1g/ml.
Materials
- 5 different rubber stoppers
- Triple Beam Balance
- Graduated Cylinder
- Overflow Can
Procedure
1. Measure the mass, in grams, of a rubber stopper using the balance. Record the results on the data table on the back of the sheet.
2. Measure the volume of the rubber stopper, in mL, using the graduated cylinder or the overflow can. Then record your results.
3. Repeat steps 1 and 2 until all stopper have been measured.
4. Using the density formula, calculate the density for each stopper. Record on the data table.
5. Using graph paper, construct a straight line graph to show the relationship between mass and volume.
Observations and Data
Stopper #
(Order is from the smallest to largest mass)
Mass (g)
Volume Displace (mL)
Density (g/mL)
1
5.6g
5mL
1.12g/mL
2
7.7g
8mL
0.96g/mL
3
12.8g
11mL
1.16g/mL
4
25.2g
24mL
1.05g/mL
5
32.8g
30mL
1.09g/mL
Analysis
1. The average density of the rubber stoppers was 1.076g/ml. (1.12+0.96+1.16+1.05+1.09/5 = 5.38/5 = 1.076)
2. (Graph is on the back page)
3. (Calculations on graph) The slope of the relationship between mass and volume is 1.08g/ml.
4. The density of the stoppers were all different but they were very close to each other.
Discussion The experiment was done to determine the density of an object by measuring it's mass and volume. To do it, the mass of 5 different rubber stoppers was recorded using the triple beam balance. Then the overflow can was filled up to as far as it can so the rubber stoppers can be dropped