Two water molecules are separated by 2.76 Å in air. Use equation 13.9 to calculate the dipole-dipole interaction (in kJ/mol). The dipole moment of water is 1.82 D. Hint: eq. 13.9:VV

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".