# Problem: Because zinc has nearly the same atomic radius as copper (d = 8.95 g/cm3 ), zinc atoms substitute for some copper atoms in the many types of brass. Calculate the density of the brass with(b) 38.0 atom % Zn.

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###### Problem Details

Because zinc has nearly the same atomic radius as copper (d = 8.95 g/cm3 ), zinc atoms substitute for some copper atoms in the many types of brass. Calculate the density of the brass with

(b) 38.0 atom % Zn.