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Gold a = 4.078 Å 18-karat gold Green yellow- 14-karat gold 60 Pale, greenish yellow Copper red White 20 40 60 80 mass% Cu Silver > Figure 12.18 Colors of Au-Ag-Cu alloys as a a = 4.085 Å function of composition. mass% Au 80 40 20 Yellow Reddish OF 40 Yellowish 09 mass% Ag

Gold a = 4.078 Å 18-karat gold Green yellow- 14-karat gold 60 Pale, greenish yellow Copper red White 20 40 60 80 mass% Cu Silver > Figure 12.18 Colors of Au-Ag-Cu alloys as a a = 4.085 Å function of composition. mass% Au 80 40 20 Yellow Reddish OF 40 Yellowish 09 mass% Ag

Chemistry
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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The karat scale used to describe gold alloys is based on
mass percentages. (a) If an alloy is formed that is 50 mol%
silver and 50 mol% gold, what is the karat number of the
alloy? Use Figure 12.18 to estimate the color of this alloy.
(b) If an alloy is formed that is 50 mol% copper and 50
mol% gold, what is the karat number of the alloy? What is
the color of this alloy?

Gold a = 4.078 Å 18-karat gold Green yellow- 14-karat gold 60 Pale, greenish yellow Copper red White 20 40 60 80 mass% Cu Silver > Figure 12.18 Colors of Au-Ag-Cu alloys as a a = 4.085 Å function of composition. mass% Au 80 40 20 Yellow Reddish OF 40 Yellowish 09 mass% Ag
Transcribed Image Text:Gold a = 4.078 Å 18-karat gold Green yellow- 14-karat gold 60 Pale, greenish yellow Copper red White 20 40 60 80 mass% Cu Silver > Figure 12.18 Colors of Au-Ag-Cu alloys as a a = 4.085 Å function of composition. mass% Au 80 40 20 Yellow Reddish OF 40 Yellowish 09 mass% Ag
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