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The phase diagram below is that of Au-Ag system. 1100 1050 1000 950 900 960°C 0 10 20 30 L 2 L+a 50 Au (%) 60 70 a 80 90 1065%

The phase diagram below is that of Au-Ag system. 1100 1050 1000 950 900 960°C 0 10 20 30 L 2 L+a 50 Au (%) 60 70 a 80 90 1065%

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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I have answered all of the numbers except number 2. I could really use some help for number 2, I don't get it at all. thanks!
The phase diagram below is that of Au-Ag system. 1100 1065°C 1050 1000 960°C L+a 950 900 50 60 70 80 90 100 10 20 30 Au (%)
Transcribed Image Text:The phase diagram below is that of Au-Ag system. 1100 1065°C 1050 1000 960°C L+a 950 900 50 60 70 80 90 100 10 20 30 Au (%)
Questions 1. What maximum temperature is 90% gold alloy remains to be pure solid? 2 Calculate the molar (atomic) percentage of this alloy if 25% of its mass (welght) is silver at 1000°C. 3. At 960°C how much mass of silver must be added to gold, with a mass of 156 grams, to attain 35% gold? 4. Does this system display peritectic transformation? Why?
Transcribed Image Text:Questions 1. What maximum temperature is 90% gold alloy remains to be pure solid? 2 Calculate the molar (atomic) percentage of this alloy if 25% of its mass (welght) is silver at 1000°C. 3. At 960°C how much mass of silver must be added to gold, with a mass of 156 grams, to attain 35% gold? 4. Does this system display peritectic transformation? Why?
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