Explain how many tonnes of sand are needed to provide

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a. One thousand tonnes (1000t, t=10^3 kg) of sand contains about a trillion grains of sand. How many tonnes of sand are needed to provide 1 mol of grains of sand?

b. Presuming the volume of a grain of sand is 1 mm^3 and the land area of the continental U.S. is 3.6*10^6 mi^2, how deep would the sand pile over the U.S. be of this area were evenly covered with 1 mol of grains of sand?

Reference no: EM13670002

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