chemistry density lab

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nclude pictures


Typed data and observations


you can watch the expierment in youtube about density expierment  to give you an idea about what we walked through

and include some pictures of the eqiupment  we used and the devices during this experiment

What’s Up

how is this experiment  related to engineering what the use of in the engineering world


Name: Omar Alardhawy

Calibration of the balance
Limit of precision
0.01 g
Standard weight 10.01% Measured weight 9.81
weight. Is Measured weight 99.973
Temp of water = 198
Precision Using the Pipet
Trial 1 Trial 2 Trial 3 Trial 4
Mass of flask after
addition of water
48.798 58,748 68-70g 78-62 g
+ 40.46
Mass of flask before
addition of water
Helg 48.798 58.798 68 70g
Mass of water
8.33 g 10.00 g 9,92 89.91:
Temperature of water
used in pipet (°C)
19 °C
Density of water
see Table 1
0.9484 g/mL
Volume of water delivered
(show calculations)
8.34 mL 10.02mL 9.93 mL 9,94 mL
1 1 V2 + 8/3 t
Average volume delivered (show calculation)
9.56 ml
Standard deviation of volume (show calculation)
Y Edi= dit dit dit
(8057 )
Experiment 1 47
Density of an Unknown Liquid #
Mass of flask and stopper after
addition of unknown liquid
Mass of flask and stopper before
addition of unknown liquid
t Z
g g
Mass of added unknown liquid
H 다
Volume delivered by pipet
Density of Unknown Liquid
Average density
Density of an Unknown Solid #
Mass of metal
Volume in cylinder before adding metal
Volume in cylinder after adding metal
29:49 7.71 8-75
660 660 God ml
Cube (do 680 660 ml
12 cylinder Traing to
to so mi
0.130:11ols g/mL
Q.13 g/mL
Volume of metal sample 6f meroyo
Density of metal
Average density
Stander D

Report Sheet Questions
What is the calculated precision for your measurement of the volume delivered by the
pipet and what is the suggested’ limit of precision for a 10 mL volumetric pipet? How
do these two values compare?
What other properties besides density could you use to identify your unknown liquid?
Your unknown solid?
48 Laboratory Techniques

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