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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Question
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!

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 (%)

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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