February 20, 2017

Homework Help: chemistry

Posted by Bru on Tuesday, October 2, 2012 at 9:19pm.

A 250.0 mL sample of an aqueous solution at 25 degrees Celsius contains 35.8 mg of an unknown nonelectrolyte compound. If the solution has an osmotic pressure of 11.25 mmHg, what is the molar mass of the unknown compound?

a.) 237 g/mol
b.) 484 g/mol
c.) 351 g/mol
d.) 699 g/mol
e.) 160 g/mol

I thought I did the math right, but I guess I didnt, because I just cant seem to get the right answer. Help me please?

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