An ecology-conscious gardner finds a container of ddt with, Ask an Expert

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An ecology-conscious gardner finds a container of DDT with about.78 in left. Wishing to dispose of it properly, he goes on a trip around the world and distributes the DDT evenly in all the oceans. After the DDT has mixed thoroughly in the oceans (this may take some time) he draws a glass of water from the nearest ocean. How many molecules of DDT would he expect to find in this sample?

(It may help in the solution to know that the volume of all the water in the oceans is estimated as 1.3x10^21 liters, and that it just happens that .78lb. of DDT is about a mole. We may assume also that there is no loss of DDT.)

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