ll GoSmart LTE 11:00 AM G * 37% ezto.mheducation.com 20-001 HW Chapter 10.00 poi

Question

ll GoSmart LTE 11:00 AM G * 37% ezto.mheducation.com 20-001 HW Chapter 10.00 points Enter your answer in the provided box. Report probl In water conservation, chemists spread a thin film of certain inert materials over the surface of water to cut down on the rate of evaporation of water in reservoirs. This technique was pioneered by Benjamin Franklin three centuries ago. Franklin found that 0.10 mLof oil could spread over the surface of water of about y'e in area. Guided Solut Assuming that oil forms a monolayer (that is, a layer that is only one molecule thick) estimate the length of each oil molecule in nanometers. Assume that oil molecules are roughly cubic. m-11

Explanation / Answer

surface area of a cube = 6a2 where a is the edge length of the cube or here length of the oil molecule

6a2 = 39.0 m2

or, a = 2.55 m = 2.55*109 nm

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