2. From the drop box, what is the most basic substance in this simulation? What is its pH value?

3. What substance(s) have a pH most similar to that of water (pH 7)?

4. What two substances have the same pH value? Why might this be?

5. Being that vomit has a pH of 2.0, would you believe the human stomach be an acidic or
basic environment? Why might this be?

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".