1. A solution has a [H+] of 0.20 M. Find the pH of this solution. 2. A solution has a [H+] of a 0.00200 M . Find the pH of this solution.
3. A solution has a [OH-] of 0.050 M. Find the pH of this solution.
4. A solution has [H+] = 2.35 × 10-3 M. Find the [OH-] for this solution.
5. A solution has pOH = 5.640. Find the [H+] for this solution. (Hint: Find pH first. Then use the formula [H+]= 10-pH to solve for [H+] )

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".

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8