Phenolphthalein is widely used as an acid-base indicator it is colorless at a ph less than 8 but it is pink when the ph is greater than 8 which of these would be the best way to use phenolphthalein? a. titration of two weak acids
b. titrating a base into an acid
c. titration of two strong acids
d. titration of two strong bases

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".