Laboratory Techniques & Measurements

Name:

Date:

Exp 2: Laboratory Techniques & Measurements Lab Section:

Data Tables:

Step 1: Length and Measurements

Object Measured Length in cm Length in mm

Stanley 25’ measuring tape 8.8 88

stapler 12.1 121

Cassette tape 10 100

Step 2: Warm Temperature Measurements

Hot tap water temperature __41__˚C

Boiling water temperature __100__˚C

Step 3: Cold Temperature Measurements

Cold tap water temperature __15__˚C

Ice water temperature __1.5__˚C

Step 4: Volume Measurements

Volume of half filled graduated cylinder 12.5___mL

Volume of completely filled small test tube __10.3mL

Number of drops in 1 mL ___30_drops

Volume of the micro pipet __120__ drops __4__mL

Step 6: Density Measurements

Part A

Mass of empty graduated cylinder ___20.3_g

Mass of graduated cylinder and water __25.2__g

Net mass of the water _4.9___g

Density of the water ___1_ g/mL

Part B

Mass of graduated cylinder and alcohol _24.3___g

Net mass of the alcohol _4__g

Density of the alcohol _.789___ g/mL

Part C

Mass of graduated cylinder and salt solution _25.9___g

Net mass of the salt solution _5.6___g

Density of the salt solution __1.1__ g/mL

Part D

Volume of half filled graduated cylinder _12.5___mL

Volume of half filled graduated cylinder and metal bolt _13.3___mL

Volume of the metal bolt _8___mL

Mass of the metal bolt _7.8___g

Density of the