8. AA and BB form a simple eutectic mixture at 62% by mass BB that melts at 183°C. The melting temperatures of pure AA and BB are 327.5°C and 231.9°C, respectively. Consider a 20.0 g molten mixture of AA and BB that is 70% by mass AA. a. Sketch and label the phase diagram b. At 220°C, the horizontal tie line cuts the phase boundary at 54% by mass BB. What are the compositions (in grams) of AA and BB in the solid and liquid phase? c. What is the maximum mass of AA(s) that can be purified from the molten mixture?

8. AA and BB form a simple eutectic mixture at 62% by mass BB that melts at 183°C. The melting temperatures of pure AA and BB are 327.5°C and 231.9°C, respectively. Consider a 20.0 g molten mixture of AA and BB that is 70% by mass AA. a. Sketch and label the phase diagram b. At 220°C, the horizontal tie line cuts the phase boundary at 54% by mass BB. What are the compositions (in grams) of AA and BB in the solid and liquid phase? c. What is the maximum mass of AA(s) that can be purified from the molten mixture?

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter11: Solutions

Section: Chapter Questions

Problem 47P

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