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

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

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.

Question

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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