1. The problem statement, all variables and given/known data Assume the formula for styrofoam (a polymer containing carbon and hydrogen) is C8H8. In a .25g styrofoam peanut, how many electrons and protons are present if it carries no excess charges? How many Coulumb's of + and - charge does this stand for? How many of the peanut's electrons has been gained/lost if the peanut has an excess charge of +0.10 C? 2. Relevant equations 3. The attempt at a solution Well, if this is a typical chemistry problem, in the beginning... I would convert grams to molecules using Avogadro's number. Not sure how to find the number of protons and electrons after that though. Doesn't it have to do with the atomic number? After that, I'm not exactly sure how to find Coulumb's of the + and - charges.