Great place on not adding the screening of great pH. The calculations are meant to enrich the idea and concepts from the 101 portion. It's not essential, but assumed that perhaps anyone will discover it helpful. A whole lot of people need to know the basic chemistry of extractions. NOTE: https://deadheads-usa06890.humor-blog.com/35120336/the-fact-about-buy-4-aco-copyright-usa-that-no-one-is-suggesting