Biology Forums - Study Force

molar mass of the solute
422. mg of an unknown protein are dissolved in enough solvent to make
5.00mL of solution. The osmotic pressure of this solution is measured to be 0.328 atm at
25.0°C.
Calculate the molar mass of the protein. Round your answer to 3 significant digits.
answer has to be in g/mol

will the answer be 6298 g/mol?Thanks
Hi can i get help in this problem. Hopefully i can get help in this. Work or explanations should help me understand the problem.Thank you.

Post Merge: 7 years ago

Using the Kf and Kb equations
A certain substance
X
 has a normal freezing point of
2.2°C
 and a molal freezing point depression constant
=Kf2.65·°C·kgmol−1
. Calculate the freezing point of a solution made of
74.9g
 of urea
NH22CO
 dissolved in
650.g
 of
X
.
Round your answer to
2
 significant digits.

This might help :)