Homework Help: chemistry

Posted by lisa on Monday, September 28, 2009 at 10:22pm.

The solubility of cholesterol in 95% ethanol is 32.5 mg/mL at 37°C and 11.5 mg/mL at 7°C. How much 95% ethanol is required to dissolve 1 g of cholesterol at 37°C? If that volume of warm, saturated solution is cooled in a refrigerator to 7°C, how much cholesterol will crystallize?

chemistry - DrBob222, Monday, September 28, 2009 at 11:35pm
1000 mg x (1 mL/32.5 mg) = ?? mL at 37 degrees C.

How much will dissolve at 7 degrees C? That will be
??mL from above x (11.5 mg/mL) = ??

Answer this Question

Related Questions

Chemistry - v/v versus w/w - Thanks a lot:) So just to confirm: normally for any...
Chemistry -repost thank you in advance - I have a bottle of 95% ethanol ...
Chemistry- urgent help needed - How do I prepare 40% v/v from 95% ethanol? When ...
Chemisty - A patient has been trying to achieve total blood cholesterol of 175 ...
ochem - A student dissolved 30 mg of a crude unknown in 2 ml of 95% ethanol at ...
statistics - 9) A 95% confidence interval for the true mean cholesterol of adult...
Chemistry - How much heat is required to convert 32.5 grams of ethanol at 28 C ...
chemistry - What is the mass/vol % ethanol in an ethanol-water solution with ...
Chemistry - A solution is made by mixing 37.0 mL of ethanol, C2H6O, and 63.0 mL ...
Dr.Bob (about finding the ml of ethanol) - ~From before since the question's...

For Further Reading

First Name:
School Subject:
Answer: