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11 Dec 2019
In 1774 Benjamin Franklin described some experiments he had performed on a pond at Clapham Common in London. He observed that a teaspoon (volume 4.5 cm3) of olive oil [Oleic Acid CH3(CH2)7CH=CH(CH2)7COOH ; density 0.92 g cm-3] when spread of a water surface of half an acre (2 x 103 m2) would calm that entire surface.
Calculate the thickness (in nm) of the surface film and the surface area (in nm2) occupied by an oleic acid molecule on water. Account briefly for your answers.
In 1774 Benjamin Franklin described some experiments he had performed on a pond at Clapham Common in London. He observed that a teaspoon (volume 4.5 cm3) of olive oil [Oleic Acid CH3(CH2)7CH=CH(CH2)7COOH ; density 0.92 g cm-3] when spread of a water surface of half an acre (2 x 103 m2) would calm that entire surface.
Calculate the thickness (in nm) of the surface film and the surface area (in nm2) occupied by an oleic acid molecule on water. Account briefly for your answers.
Jamar FerryLv2
13 Dec 2019
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