1. This document contains 10 chemistry problems involving stoichiometry calculations, limiting reactants, percent composition, percent yield, and other concepts. 2. The problems ask the reader to calculate amounts of products, identify limiting reactants, determine empirical and molecular formulas, and calculate theoretical and percent yields for various chemical reactions. 3. The document provides the necessary chemical equations, amounts of reactants, and other data needed to solve each multi-step stoichiometry problem.