The dipole moment (μ) of HBr (a polar covalent molecule) is 0.804D (debye), and its percent ionic character is 11.9 % . Estimate the bond length of the H−Br bond in picometers. Note that:
1 D=3.34×10−30 C⋅m and
in a bond with 100% ionic character, Q=1.6×10^−19 C.

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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".