In water conservation, chemists spread a thin film of a certain inert material 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 mL of oil could spread over the surface of water about 40 m 2 in area. Assuming that the oil forms a monolayer, that is. a layer that is only one molecule thick, estimate the length of each oil molecule in nanometers ( 1 nm = 1 × 10 -9 m ) .
In water conservation, chemists spread a thin film of a certain inert material 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 mL of oil could spread over the surface of water about 40 m 2 in area. Assuming that the oil forms a monolayer, that is. a layer that is only one molecule thick, estimate the length of each oil molecule in nanometers ( 1 nm = 1 × 10 -9 m ) .
Solution Summary: The author explains that the length of each oil molecule in nanometres is to be estimated. The conversion factor is a tion obtained from the relationship between the units.
In water conservation, chemists spread a thin film of a certain inert material 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 mL of oil could spread over the surface of water about
40 m
2
in area. Assuming that the oil forms a monolayer, that is. a layer that is only one molecule thick, estimate the length of each oil molecule in nanometers
(
1 nm = 1
×
10
-9
m
)
.
Suppose you have Avogadro\'s number of mini marshmallows and use them to cover the state of Wyoming which has a land area of 9.710 × 104 mi2. Each mini marshmallow has a diameter of 0.635 cm and a height of 2.54 cm. Assuming the marshmallows are packed together so there is no space between them, to what height above the surface, in kilometers, will the mini marshmallows extend?
An aluminum foil weighs 0.500 g and measures 10.00 cm by 10.00 cm. Given the density of aluminum is 2.70 g/cm3, refer to Example Excercise 4 and find the thickness of the foil.
The speed limit on road in Mexico is 90 km/hr. What is this speed equivalent to on moles per hour, if 1.00 = 0.621 mile?
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
The Creation of Chemistry - The Fundamental Laws: Crash Course Chemistry #3; Author: Crash Course;https://www.youtube.com/watch?v=QiiyvzZBKT8;License: Standard YouTube License, CC-BY