1. Starting with a 10% solution and making a series of 1:100dilutions must be made to prepare a 0.1 ppm (part per million)solutions? How many ppb's (part per billion) is this concentration?
2. Starting with a 0.1M solution and making a series of 1:100dilutions, how many dilutions must be made to prepare a solution,that on average, has fewer than one molecule of soute per liter of solvent?