A solution of 4.00 g hemoglobin in 100 mL was prepared and its osmotic pressure was measured. The osmotic pressure was found to be 0.0130 atm at 280 K.
(a) Estimate the molar mass of hemoglobin.
(b) If 4.00 g of NaCl is dissolved in 100 mL of water, what would the osmotic pressure be?
Molecular weights of some proteins: ferricytochrome c 12 744; myoglobin 16 951; lysozyme 14 314; immunoglobulin G 156 000; myosin 570 000