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Basic Measurements and Uncertainties Post-Lab Quiz: Addendum

Autor:   •  April 5, 2011  •  Case Study  •  463 Words (2 Pages)  •  1,462 Views

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Basic Measurements and Uncertainties Post-Lab Quiz: Addendum

Please provide the letter ID of your cylinder (e.g., A, B, C, etc.): ____B______

9) Report the value of the volume you obtained for your cylinder in "proper form:"

D = 19.27 ± 0.04

H = 28.40 ± 0.01

V= ¼ X pie(19.27∧2)(28.40) = 8282.694646

Vmax = V= ¼ X pie(19.31∧2)(28.41) = 8320.044759

Vmax – V = 37.3501131 (uncertainty)

Round V to 1 significant figure = 4 X 10∧1mm3

Round volume to same power 10 = 828.2 X 10∧1mm3

Volume = (8.28 ± 0.01)x 4 mm3

10) Report the value of the density you obtained for your cylinder in "proper form:"

p = m / v

density = 2.70g/cm 3

( 8.28 ± 0.01)x 4 mm3 ) / (2.70g/cm^3) =

=(3.1 ± 0.5) g/cm3

9) Report the value of the volume you obtained for your cylinder in "proper form:"

D = 19.27 ± 0.04

H = 28.40 ± 0.01

V= ¼ X pie(19.27∧2)(28.40) = 8282.694646

Vmax = V= ¼ X pie(19.31∧2)(28.41) = 8320.044759

Vmax – V = 37.3501131 (uncertainty)

Round V to 1 significant figure = 4 X 10∧1mm3

Round volume to same power 10 = 828.2 X 10∧1mm3

Volume = (8.28 ± 0.01)x 4 mm3

10) Report the value of the density you obtained for your cylinder in "proper form:"

p = m / v

density = 2.70g/cm 3

( 8.28 ± 0.01)x 4 mm3 ) / (2.70g/cm^3) =

=(3.1 ± 0.5) g/cm3

...

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