You are given 80 g of sodium nitrate and 200 g of water at
10° C. He would like to create
a saturated solution. How
many grams of solute (if any)
would you have to add to
remove to do so? Explain your
answer. (Be careful this is
tricky it is NOT 100 g of water)

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".