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Posted by on Monday, December 17, 2012 at 9:53am.

A protein has a molecular weight of 98,300 grams/ mole. What will be the osmotic pressure if 0.128 grams of this protein I dissolved in 15.0 ml of water at 20 degrees calcias?

  • Chemistry - , Monday, December 17, 2012 at 12:06pm

    Note the correct spelling of celsius.

    pi = osmotic pressure in atm.
    R is 0.08206 L*atm/mol*K
    pi = MRT
    M = mols/L. mols = grams/molar mass. Solve for mols, then M, then pi. Technically this won't be quite right since M = mols/L soln and the problem quotes adding the solute to 15.0 mL.

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