Date of Experiment: 9/14/2013
Report Submitted: 9/15/13

Laboratory Techniques and Measurements

PURPOSE: The purpose of this lab was to experiment using the International System of Units to determine mass, length, temperature, volume, and density of objects and liquids using common measuring devices and formulas.

PROCEDURE: In this lab I performed several different exercises to learn how to obtain various lengths, temperature, mass, density, volume, concentration, and dilution.
Length: I measured various items using the ruler and recording in cm, mm, and meter.
Temperature: I measured water in various temperatures from ice cold to boiling hot then recorded our finding in Celsius and then converted to Fahrenheit and Kelvin.
Mass: I measured various objects using our digital scale and recorded the mass in gram and kilograms.
Volume/Density: I measured the mass and volume of various liquids and solids to calculate the density of this substance.
Concentration/Solution/Dilution: I used sugar and a solution of sugar to learn to calculate molecular weight, molarity, and how to calculate concentration and dilution of that solution.

CONCLUSION/DATA TABLES:
Length Measurements
Object
Length (cm)
Length (mm)
Length (m)
CD
12cm
120mm
.12m
Key
5.7cm
57mm
.057m
Spoon
18.1cm
181mm
.181m
Fork
18.5cm
185mm
.185m

Temperature Measurements
Water
Temperature (°C)
Temperature (°F)
Temperature (°K)
Hot from tap
42°
107.6° 315.15°
Boiling
98°
208.4°
371.15°
Boiling for 5 min
101°
213.8°
374.15°
Cold from tap
25°
77°
298.15°
Ice water – 1 min
5°
41°
278.15°
Ice water – 5 min
2°
35.6°
275.15°

Mass Measurements
Object
Estimated Mass (g)
Actual Mass (g)
Actual Mass (kg)
Pen
10g
9.8g
.0098kg
3 pennies
8g
7.5g
.0075kg
1 quarter
6g
5.6g
.0056kg
2 quarters, 3 dimes
18g
18.1g
.0181kg
4 dimes, 5 pennies
22g
21.5g
.0215kg
3 qtrs, 1 dime, 5pennies
32g
31.7g
.0317kg
Key
8g
7.6g
.0076kg
Key, 1quarter, 4pennies
23g
23.2g
.0232kg

Liquid Measurements

Mass A
Mass B
Mass B-A

Liquid
Volume (ml)
Graduated Cylinder (g)
Graduated Cylinder with liquid (g)
Liquid (g)
Density g/ml
%
Error
Water
5ml
17g
21.9g
4.9g
.98g/ml
.08%
Isopropyl Alcohol

5ml

17g

21.4g

4.4g

.88g/ml

.12%

Magnet – Measurement Method
Object:
Mass (g)
Length (cm)
Width (cm)
Height (cm)
Volume
Density
Magnet
4.4g
2.5cm
.5cm
.5cm
0.625cmᵌ
7.04g/cmᵌ

Displacement Method
Object
Mass (g)
Initial Volume (ml)
Final Volume (ml)
Object Volume (ml)
Density
(g/ml)
Magnet
4.4g
7ml
7.75ml
.75ml
5.9g/ml
Bolt
8.0g
7ml
8ml
1ml
8g/ml

Archimedes’ Method
Object
Mass (g)
Mass of Displaced Water (g)
Volume of Displaced Water (ml)
Density
(g/ml)
Metal Bolt
8.0g
1.1g
1.1ml
7.2g/ml
Magnet
4.4g
.8g
.8ml
5.5g/ml

Initial Concentration
Chemical
Mass (g)
Molecular Weight (g)
Moles in