Brass is an alloy of copper and zinc. varying the mass per- centages of the two metals produces brasses with different proper- ties. a brass called yellow zinc has high ductility and strength and is 34–37% zinc by mass. (a) find the mass range (in g) of copper in 185 g of yellow zinc. (b) what is the mass range (in g) of zinc in a sample of yellow zinc that contains 46.5 g of copper?
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