Stoichiometry

__**Directions:**__ a) list and define all vocabulary from the chapter b) type at least 4 sample problems with step-by-step directions of how to solve the problem; list the correct answers (if your chapter doesn't have math, there are still problems and concepts we learned.) c) link at least 3 websites for additional resources to help with studying d) develop your own LEQ questions for the section - what did you think were the key points we learned? e) Once your page is done, visit 4 other chapters and answer their LEQ's. (This can be done on a separate piece of paper.)

a) limiting reagent- determines how much product can be formed excess reagent- leftover during reaction process conservation of mass- total mass remains constant when comparing reactants and products

b) For the following questions, balance the equation. Then, suppose 10.0g of each reactant is taken. show by calculation which reactant is the limiting reagent by solving for the moles of the first product. use the limiting reagent to calculate the mass of each product formed. To solve these problems, you first have to balance the equations. Then, you convert each reactant from grams into moles. Whichever reactant is the lowest amount of moles, is the limiting reagent. Then take the limiting reagent and convert into grams, then subtract that amount from the original amount of grams, and that is the grams of the first product. Then, use limiting reagent again to convert moles to grams of the second product. c) http://www.chem4kids.com/files/react_stoichio.html http://www.learnchem.net/tutorials/stoich.shtml http://www.shodor.org/unchem/basic/stoic/

d) LEQ: How do we use stoichiometry to find the limiting reagent, and mass of the products?