1) The document describes an experiment to measure the density of water using different measurement devices (beaker, graduated cylinder, burette, pipette) and determine which was most accurate. 2) It then used the most precise device to find the density of sugar solutions with concentrations of 5%, 10%, 15%, and 20%, as well as three sodas. 3) The conclusion indicates the densities were all near 1 g/mL, being the density of water, and a linear relationship was found between density and sugar concentration.

1. Kylie Swain
Morgan 218-113
September 5, 2014
Methods of Measurements, the Determination of Sugar in Soft Drinks, and Graphing with
Excel
Introduction:
In this experiment, we will measure the density of water over two trials with
multiply devices to see which device is the most accurate. Then, after finding the most
precise device we will find the density of four different sugar concentrates.
Experimental Methods:
In this experiment, the beaker, graduated cylinder, burette, and pipette were
weighed dry. The beaker weighed 106.95g in trial one and 107.18g in trial two. After the
dry beaker was weighed, 25mL of water was carefully measured into each beaker. The
beakers were then weighed again to find the calculated weight of the water in the beaker.
The weight of trial one was 129.59g with the beaker and water combined. The beaker and
water weighed 127.25g in trial two.
Next, the graduated cylinder was measured dry for two trials. Trial one the
graduated cylinder weighed 93.99g and in trial two the graduated cylinder weighed
94.22g. After measuring out 25mL of water in each container the devices were weighed
again. In trial one the water and container combined weighed 113.34 and in trial two it
weighed 113.65g.
Then, the burette was used to measure 20mL of water. First, two dry 50mL
beakers were weighed. Trial one weighed 62.32g and trial two weighed 62.54g. 20mL of
water was measured into the burette and released into the smaller beaker. After the 20mL
of water was poured into the beakers, the beakers were each measured again. In trial one
the beaker and water weighed 77.25g. In trial two the beaker and water weighed 78.29g.
Lastly, the pipette was used to measure 10mL of water. Two dry beakers were
used again to weigh the measured substance. In trial one the beaker weighed 62.53g and
in trial two the beaker weighed 62.53g. After 10mL of water was measured in the pipette
and poured into the beakers, the beakers were measured again. In trial one the beaker and
water weighed 72.45g and in trial two the beaker and water weighed 69.02g.
In part two of this experiment, 5% sugar concentration, 10%sugar concentration,
15% sugar concentration, 20% sugar concentration and three sodas were measured with a
10mL pipette. The dry beaker weighed 62.29g for 5% sugar concentration and the beaker
and concentration together weighed 72.38g. For 10% sugar concentration the beaker
weighed 62.30g and 72.62g with concentration and beaker combined. For 15% sugar
concentration, the beaker weighed 62.30g and concentration and beaker combined
weighed 72.82g. For 20% concentration, the beaker alone weighed 62.31g and with the
concentration added it weighed 73.03g. The beaker for the diet soda weighed 96.51g and
with 10mL of diet measured, it weighed 106.43g. The beaker for the 7up weighed 62.43g
and with 10mL of 7up poured into the beaker, it weighed 72.81g. The beaker was
weighed one last time for the regular Pepsi. The beaker weighed 108.7g empty and
112.26g with 10mL of Pepsi.

2. Data:
Beaker-
1 2 Avg
Mass(g) 106.95g 107.18g 107.065g
Mass of
beaker+water(g)
129.59g 127.25g 128.42g
Mass of water(g) 22.64g 20.07g 21.355g
Volume(mL) 25.0mL 25.0mL 25.0mL
Density(g/mL) .9056g/mL .8028g/mL .8542g/mL
% error -9.44% -19.72% -14.58%
Graduated cylinder-
1 2 Avg
Mass(g) 106.95g 107.18g 107.065g
Mass of
beaker+water(g)
129.59g 127.25g 128.42g
Mass of water(g) 22.64g 20.07g 21.355g
Volume(mL) 25.0mL 25.0mL 25.0mL
Density(g/mL) .9056g/mL .8028m/mL .8542g/mL
% error -3.25% -2.85% -3.05%
Burette-
1 2 Avg
Mass(g) 62.32g 62.54g 62.43g
Mass of
beaker+water(g)
77.25g 78.29g 77.77g
Mass of water(g) 14.93g 15.75g 15.34g
Volume(mL) 20mL 20mL 20mL
Density(g/mL) .7465g/mL .7875g/mL .767g/mL
% error -25.35% -21.25% -23.3%
Pipette-
1 2 Avg
Mass(g) 62.53g 62.52g 62.53g
Mass of
beaker+water(g)
72.45g 69.01g 70.73g
Mass of water(g) 9.92g 69.01g 70.73g
Volume(mL) 10mL 10mL 10mL
Density(g/mL) .992g/mL .648g/mL .82g/mL
% error -.8% -35.2% -18%

3. 5% sugar concentration-
1 2
Mass(g) 62.29g 62.29g
Mass of
beaker+water(g)
72.38g 82.50g
Mass of water(g) 10g 10.12g
Volume(mL) 10mL 10mL
Density(g/mL) 1g/mL 1.03g/mL
10% sugar concentration-
1 2
Mass(g) 62.30g 62.30g
Mass of
beaker+water(g)
72.62g 82.92g
Mass of water(g) 10g 10.3g
Volume(mL) 10mL 10mL
Density(g/mL) 1g/mL 1.03g/mL
15% sugar concentration-
1 2
Mass(g) 62.30g 62.30g
Mass of
beaker+water(g)
72.82g 83.71g
Mass of water(g) 10.52g 10.68g
Volume(mL) 10mL 10mL
Density(g/mL) 1.05g/mL 1.068g/mL
20% sugar concentration-
1 2
Mass(g) 62.31g 62.31g
Mass of
beaker+water(g)
73.03g
Mass of water(g) 10.52g 10.68g
Volume(mL) 10mL 10mL
Density(g/mL) 1.07g/mL 1.068g/mL

4. Diet Pepsi
1
Mass(g) 96.51g
Mass of
beaker+water(g)
106.43g
Mass of water(g) 9.92g
Volume(mL) 10mL
Density(g/mL) .992g/mL
7up
1
Mass(g) 62.43g
Mass of
beaker+water(g)
72.81g
Mass of water(g) 10.44g
Volume(mL) 10mL
Density(g/mL) 1.044g/mL
Pepsi
1
Mass(g) 108.7g
Mass of
beaker+water(g)
112.6g
Mass of water(g) 3.56g
Volume(mL) 10mL
Density(g/mL) 2.81g/mL
0
0.5
1
1.5
2
2.5
3
Diet 7up Pepsi
Density
Soda
Series1

5. Conclusion:
In conclusion, we found the density of water, sugar concentrations, and soda
using different measuring devices. We found that all the densities were near 1 and 1
being the density of water.
y = 0.0037x + 0.9952
R² = 0.9842
0.98
0.99
1
1.01
1.02
1.03
1.04
1.05
1.06
1.07
1.08
0 10 20 30
Density
% Sugar
Series1
Linear
(Series1)