3. An alloy of copper and gold has the primitive cubic structure shown below. (a) Calculate the composition of this unit cell (chemical formula). Note: All Cu atoms are on the faces of the unit cell. (b) Given that 24-carat gold is pure gold (100 wt% of gold), what carat gold does this alloy represent (show your calculations)? Au Cu

Principles of Modern Chemistry
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Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
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Chapter21: Structure And Bonding In Solids
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3. An alloy of copper and gold has the primitive cubic structure shown below.
(a) Calculate the composition of this unit cell (chemical formula). Note: All Cu atoms are on the faces of the unit cell.
(b) Given that 24-carat gold is pure gold (100 wt% of gold), what carat gold does this alloy represent (show your
calculations)?
Au
Cu
Transcribed Image Text:3. An alloy of copper and gold has the primitive cubic structure shown below. (a) Calculate the composition of this unit cell (chemical formula). Note: All Cu atoms are on the faces of the unit cell. (b) Given that 24-carat gold is pure gold (100 wt% of gold), what carat gold does this alloy represent (show your calculations)? Au Cu
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