Chemistry (including Biochemistry)/Solubility

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Question
Hello there,

Recently I was asked to tackle the following question, which I had a hard time comprehending. I would be glad if you extended your help:

I have a mixture containing Compound A and B. And they both have a  solubility of 1g/100mL of solvent at 20 degrees and 10g/100mL @ 100 degrees. Furthermore, @ 100-degrees all of the sample containing A and B dissolves in the minimum amount of solvent. Then the solution is cooled to 2o-degrees. What is the composition of the crstals and the yiled of the process.

Please help me. I don;t need actual answers. Just some explanation.

Answer
Not enough info unless you consider the ideal case.  If you added 10g of each at 100C then the following will happen (you don't state how much A and B are added). Since 1g of each is soluble at 20C, then at 20C there will be 1g of each dissolved.  Since you had x g of each in the pot, x-1 g of each turn to solid.

Chemistry (including Biochemistry)

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Chemistry (non-biochemistry), environmental science, occupational health and safety, environmental regulation and management, environmental engineering, and wastewater engineering. I'm the Director of Environmental, Health, and Safety and the Director of Research at the Institute of Textile Technology.

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Chemistry (non-biochemistry), environmental science, occupational health and safety, environmental regulation and management, environmental engineering, and wastewater engineering. I'm the Director of Environmental, Health, and Safety and the Director of Research at the Institute of Textile Technology.

Education/Credentials
PhD, MS, BS in Chemistry

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