Question

# Theoretically, how much water would it take to dissolve a 150 mg sample of a compound...

Theoretically, how much water would it take to dissolve a 150 mg sample of a compound whose solubility in water at 98oC is 3.0 g/100 mL water? A. 50ml B. 5.0ml C.0.0045

During a recrystallization, if more solvent than necessary was used, how would the recovery be affected?

Question 8 options:

 % recovery will be low % recovery will be high % recovery will be over 100%

A certain amount of ‘solvent A’ will dissolve 32 grams of acetaminophen at room temperature and 35 grams at 100oC. The same amount of ‘solvent B’ will dissolve 1.2 grams of acetaminophen at room temperature and 35 grams at 100oC. Which one of these two solvents will be suitable for the recrystallization of acetaminophen?

Question 2 options:

 Solvent B Neither A nor B is a suitable solvent Both A and B are suitable solvents Solvent A

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