Calculation of Density of Water at 24oC

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Calculation of Density of Water at 24oCVolume of the density bottle= 25 mlMass of empty density bottle= 13.569 gMass of empty density bottle and water= 38.494 gMass of water= 38.494 13.569 = 24.925 gDensity of water= = = 0.997 gcm-3Error in Density d= = + d= ( + ) x d= ( + ) x 0.997 = 0.004 Density of Water= 0.997 0.004 gcm-3

Calibration of Measuring Cylinder 50 cm3 Mass of empty measuring cylinder= 84.472 gTheoretical Volume of measuring cylinder = 50cm3Calibration No.Mass of measuring cylinder + water (g)Mass of water (g)

1

134.45149.979

2

134.42949.957

3

134.43249.960

Average Mass

49.965 (to 3 d.p)

Practical volume of measuring cylinder= = = 50.116 cm3 (to 3 d.p)Error in Volumev= = + v= ( + ) x v= ( + ) x 50.116 = 0.2That is Error in Volume= 0.2Percentage error= = 0.4 %

Calibration of Volumetric FlaskMass of empty Volumetric Flask= 64.425 gTheoretical Volume of Volumetric Flask= 100 cm3Calibration No.Mass of Volumetric Flask + water (g)Mass of water (g)

1

164.435100.010

2

164.441100.016

3

164.446100.021

Average Mass

100.016 (to 3 d.p)

Practical volume of Volumetric Flask= = = 100.317 cm3 (to 3 d.p)Error in Volumev= = + v= ( + ) x v= ( + ) x 100.317 = 0.4That is Error in Volume= 0.4Percentage error= = 0.8 %

Calibration of Graduated Pipette Mass of empty Beaker used for weighing water= 49.742 gTheoretical Volume of Graduated Pipette= 25 cm3Calibration No.Mass of Beaker + water (g)Mass of water (g)

1

75.26325.521

2

74.89925.157

3

75.02125.279

Average Mass

25.319

Practical volume of Graduated Pipette= = = 25.395 cm3 (to 3 d.p)

Error in Volumev= = + v= ( + ) x v= ( + ) x 25.395 That is Error in Volume= 0.1

Percentage error= = 0.4 %

Calibration of Conical Flask Mass of empty Conical Flask= 128.179 gTheoretical Volume of Conical Flask= 200 cm3Calibration No.Mass of Conical Flask + water (g)Mass of water (g)

1

328.190200.011

2

328.281200.102

3

328.195200.016

Average Mass

200.043

Practical volume of Conical Flask= = = 200.645 cm3 (to 3 d.p)

Error in Volumev= = + v= ( + ) x v= ( + ) x 200.645 That is Error in Volume= 0.8

Percentage error= = 0.4 %

Calibration of Bulb Pipette Mass of empty Beaker used for weighing water= 49.742 gTheoretical Volume of Bulb Pipette= 25 cm3Calibration No.Mass of Beaker + water (g)Mass of water (g)

1

74.76325.021

2

74.75225.010

3

74.75325.011

Average Mass

25.014

Practical volume of Graduated Pipette= = = 25.089 cm3 (to 3 d.p)

Error in Volume v= = + v= ( + ) x v= ( + ) x 25.089 That is Error in Volume= 0.1

Percentage error= = 0.4 %

Calibration of Burette Mass of empty Beaker used for weighing water= 49.742 gTheoretical Volume of Burette= 50 cm3Calibration No.Mass of Beaker + water (g)Mass of water (g)

1

99.74350.001

2

99.76450.022

3

99.75850.016

Average Mass

50.013

Practical volume of Burette= = = 50.163 cm3 (to 3 d.p)

Error in Volumev= = + v= ( + ) x v= ( + ) x 50.163That is Error in Volume= 0.2

Percentage error= = 0.4 %