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Summary: Worksheet For Determination Of Avogadro

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Summary: Worksheet For Determination Of Avogadro
Worksheet for determination of Avogadro’s Number Trial 1 Trial 2
Number of drops per mL from pipet 46 drops 50 drops
Average number of drops per ml 48 drops
Vol. per drops of ethanol 0.02 mL
Vol. of oleic acid per drop of ethanol solution 0.0001 mL
Density of oleic acid 0.895 g/cm^3
Grams of oleic acid M= D x V
M= 0.0179 g
Grams of oleic acid per drop of ethanol solution M= D x V
8.95*10^-5 g

Diameter of circle formed:
Circle A 1.5 cm 1.1 cm 1.7 cm
Circle B 1.2 cm 1.1 cm 0.9 cm
Circle C 0.6 cm 0.8 cm 1.0 cm

Average circle diameter 1.1 cm
Vol. of oleic acid monolayer 1x10^-4 mL
Estimated height of oleic acid monolayer 1.05x10^-4 cm

Area of circle of oleic acid monolayer 0.95 cm²
Surface area of top of one molecule 2.1
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