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A 25.0 mm 40.0 mm piece of gold foil is 0.25mm thick, the density of gold is 19.32g/cm How many gold atoms are in

A 25.0 mm 40.0 mm piece of gold foil is 0.25mm thick, the density of gold is 19.32g/cm How many gold atoms are in the sheet ? (Atomic wtAu = 197.0) A 7.7 x 1023 B 1.5 x 1023 C 4.3 1021 D 1.47 x 1022

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