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A Comparison Of The Density Of Ice And Water

562 words - 2 pages

Aim: To measure the mass of several different volumes of water and ice and use these to calculate their densities.Equipment:Electronic balanceWaterIce cubesMeasuring cylinder100mL beakerRisk Assessment:
Hazard

Control

Use of glass instruments - careless usage may lead to breakage

Care

Part A: The density of waterMethod:The mass of the empty measuring cylinder was recorded using the electronic balance.Water was added to the measuring cylinder using the 100mL beaker.The combined mass of the measuring cylinder and water was recorded.The mass of the water and the volume of the water was calculated using the difference between the above values (Combined mass of water and measuring cylinder - mass of measuring cylinder).This procedure was repeated another 4 (reliability).Results:

Trial 1

Trial 2

Trial 3

Trial 4

Trial 5

Mass of 100mL measuring cylinder (g)

134

134

134

134

134

Mass of water + cylinder (g)

154

164

174

184

194

Mass of water (g)

20

30

40

50

60

Volume of water (ml)

20

30

40

50

60

Average Density calculated as 1 g/mL.Class results:
Group number

Density calculated

1

1

2

1

3

1

4

1

5

1

6

1

Questions:How did your value compare with those of the rest of the class? The value was consistent throughout the class.Suggest possible reasons for variations between groups. There was no variation - as seen in the above table.***************************************************Part B: The Density of IceMethod:The mass of an ice cube was measured using the electronic balance.The ice cube was submerged in a measuring cylinder filled with water up to the 40mL line.The amount of water that was displaced by the ice cube was recorded (this is equal to the volume of the ice cube in milliliters).The results were recorded and the procedure was repeated 5 times to increase reliability.Results:

Trial 1

Trial 2

Trial 3

Trial 4

Trial 5

Mass of Ice (g)

7

13

14

21

20

Volume of Ice (mL)

8...

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