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Gold, which has a density of 19.32 g/cm3, is the most ductile metal and can be...

Gold, which has a density of 19.32 g/cm3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber. (a) If a sample of gold with a mass of 7.544 g, is pressed into a leaf of 7.067 μm thickness, what is the area of the leaf? (b) If, instead, the gold is drawn out into a cylindrical fiber of radius 2.200 μm, what is the length of the fiber?

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Answer: (a) Density = mas Areax thickness may Arear = Density x Thickness 7.544 79,32]X .067X104) Area = 552.53 cho = 0.0552

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