CHM 1025C:

NAME______________________________________ DATE____________________

Experiment 3: DENSITY Data Sheet

A. KNOWN SOLID (Black Rubber Stopper) (Volume via Displacement)

(1) Volume: Graduate +Water = _______mL (5) DENSITY: __________g/ml

(2) Mass of Rubber Stopper = _______g (6) CORRECT: 1.2 g/ml

(3) Volume: Grad+Water+Stopper = _____ mL (7) DEVIATION: ________g/ml

(4) Volume of Stopper = _______mL (8) % Error: _________%

{Subtract line (1) from line (3)} {(divide line (7) by line (6)) X 100}

Show Calculation of Density:

Points: _______(5)

B. UNKNOWN SOLID Unknown #____ Description:______________________

(1) Mass of unknown = _______g (5) DENSITY:________ g/ml

(2) Volume: Graduate + water= _______mL (6) CORRECT________g/mL

(3) Volume: Grad + Water + Unk = _____mL (See Instructor)

(4) Volume of Unknown = _______mL (7) DEVIATION_______g/mL

{Subtract line (2) from line (3)} (8) % Error: _________%

Show Calculation of Density: {(divide line (7) by line (6)) X 100}

Points: _______(5)

C. KNOWN LIQUID (water)

(1) Mass of Empty Flask: ________g (6) DENSITY: _________g/mL

(2) Volume of Water: 25.00 mL (7) CORRECT: ________ g/mL

(3) Mass Flask + Water: ________g (See Chart)

(4) Mass of Water: ________g (8) DEVIATION: ________g/mL

{Subtract line (1) from line (3)} (9) % Error: _________%

(5) Temperature: _______ ºC {(divide line (8) from line (7)) X 100}

Show Calculation of Density: Points: _____(5)

D, UNKNOWN LIQUID Unknown # or Identity: ______________________

(1) Mass of Stoppered Flask: ______g (5) DENSITY: _________g/mL

(2) Volume Unknown: 10.00 mL (6) CORRECT: __________g/mL

(3) Mass Flask + Unknown: _______g (7) DEVIATION: _________ g/mL

(4) Mass of Unknown Liquid: _______g Points: _____(5)

Instructor OK:_________ TOTAL SCORE: _______

Complete all densities before leaving the lab and have your instructor initial your lab notebook.