List all the intra- and intermolecular forces that could exist between hemoglobin molecules in water.

Starch contains CC, CH, CO, and OH bonds. Hydrocarbons have only CC and CH bonds. Both starch and hydrocarbons can form colloidal dispersions in water. Which dispersion is classified as hydrophobic? Which is hydrophilic? Explain briefly.

How does the polarity of the phosphoglycerides contribute to their function of forming cell membranes?

The molecular mass of a polyethyleneglycol (PEG) can be quite variable; the osmotic pressure of a solution containing 1.358 g of PEG dissolved in a final volume of 420.27 mL was 30.572 torr at 25.00�C? What is the molecular mass of the compound?  199.1 g/mol    322.2 g/mol  1965.3 g/mol  164.8 g/mol