A gold cylinder has a length of 6.25 cm and a radius of 1.25 cm. The density of gold is 19.3 g/cm3. Vcylinder = π r 2 l
How many gold atoms are contained in the gold cylinder?
A. 1.94 x 10 -19 atoms
B. 1.81 x 10 24 atoms
C. 1.92 x 10 21 atoms
D. 9.85 x 10 23 atoms
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