Lab Report 1 Lab Techniques and Measurements
Date report submitted: June 18, 2015
Title: Lab Techniques and Measurements
PURPOSE: The purpose of this experiment is for the students to get a better knowledge with the laboratory tools and techniques. This experiment taught me how to convert between SI units and standard American units of mass, length, temperature, volume and time as well as how to measure the units. Students become proficient in laboratory techniques such as measuring temperature and volume and calculating within them.
Procedure: I used a measuring device such as a ruler, balance or volumetric flask to determine the values for each measurement.
DATA Tables:
Data Table 1: Length measurements.
Object
Length (cm)
Length (mm)
Length (m)
CD or DVD
11.95
119.5
0.1195
Key
7.62
76.2
0.0762
Spoon
17.19
171.9
0.1719
Fork
15.61
151.6
0.1516
Data Table 2: Temperature measurements.
Water
Temperature (°C)
Temperature (°F)
Temperature (K)
Hot from tap
43.1
109.6
316.25
Boiling
83.3
181.9
356.45
Boiling for 5 minutes
94.3
201.7
367.45
Cold from tap
19.9
67.8
293.05
Ice water – 1 minute
4.9
40.8
717.05
Ice water – 5 minutes
5.4
41.7
278.55
Data Table 3: Mass measurements.
Object
Estimated Mass (g)
Actual Mass (g)
Actual Mass (kg)
Pen or pencil
10
5.5
0.0055
3 Pennies
12
7.6
0.0076
1 Quarter
8
5.5
0.0055
2 Quarters, 3 Dimes
25
18.1
0.0181
4 Dimes, 5 Pennies
22
21.7
0.0217
3 Quarters, 1 Dime, 5 Pennies
26
31.8
0.0318
Key
25
15.5
0.0155
Key, 1 Quarter, 4 Pennies
39
31.3
0.0313
Liquid
Volume
(mL)
Graduated
Cylinder (g)
Graduated
Cylinder with liquid (g)
Liquid (g)
Density
g/mL
% Error
Water
5.0
17.0
22.0
5.0
1.0
0.0
Isopropyl alcohol
5.1
17.0
21.6
4.6
0.90
14.5
Data Table 5: Magnet – Measurement Method.
Object:
Mass
(g)
Length
(cm)
Width
(cm)
Height
(cm)
Volume
(cm3)
Density
(g/cm3)
Magnet
4.6
2.5
0.5
0.5
0.625
7.36
Data Table 6: Displacement Method.
Object
Mass
(g)
Initial volume of graduated cylinder (mL)
Final volume of graduated cylinder (mL)
Object Volume (mL)
Density
(g/mL)
Magnet
Title: Lab Techniques and Measurements
PURPOSE: The purpose of this experiment is for the students to get a better knowledge with the laboratory tools and techniques. This experiment taught me how to convert between SI units and standard American units of mass, length, temperature, volume and time as well as how to measure the units. Students become proficient in laboratory techniques such as measuring temperature and volume and calculating within them.
Procedure: I used a measuring device such as a ruler, balance or volumetric flask to determine the values for each measurement.
DATA Tables:
Data Table 1: Length measurements.
Object
Length (cm)
Length (mm)
Length (m)
CD or DVD
11.95
119.5
0.1195
Key
7.62
76.2
0.0762
Spoon
17.19
171.9
0.1719
Fork
15.61
151.6
0.1516
Data Table 2: Temperature measurements.
Water
Temperature (°C)
Temperature (°F)
Temperature (K)
Hot from tap
43.1
109.6
316.25
Boiling
83.3
181.9
356.45
Boiling for 5 minutes
94.3
201.7
367.45
Cold from tap
19.9
67.8
293.05
Ice water – 1 minute
4.9
40.8
717.05
Ice water – 5 minutes
5.4
41.7
278.55
Data Table 3: Mass measurements.
Object
Estimated Mass (g)
Actual Mass (g)
Actual Mass (kg)
Pen or pencil
10
5.5
0.0055
3 Pennies
12
7.6
0.0076
1 Quarter
8
5.5
0.0055
2 Quarters, 3 Dimes
25
18.1
0.0181
4 Dimes, 5 Pennies
22
21.7
0.0217
3 Quarters, 1 Dime, 5 Pennies
26
31.8
0.0318
Key
25
15.5
0.0155
Key, 1 Quarter, 4 Pennies
39
31.3
0.0313
Liquid
Volume
(mL)
Graduated
Cylinder (g)
Graduated
Cylinder with liquid (g)
Liquid (g)
Density
g/mL
% Error
Water
5.0
17.0
22.0
5.0
1.0
0.0
Isopropyl alcohol
5.1
17.0
21.6
4.6
0.90
14.5
Data Table 5: Magnet – Measurement Method.
Object:
Mass
(g)
Length
(cm)
Width
(cm)
Height
(cm)
Volume
(cm3)
Density
(g/cm3)
Magnet
4.6
2.5
0.5
0.5
0.625
7.36
Data Table 6: Displacement Method.
Object
Mass
(g)
Initial volume of graduated cylinder (mL)
Final volume of graduated cylinder (mL)
Object Volume (mL)
Density
(g/mL)
Magnet