PDF-3.10 Calculations Involving a Limiting Reactant

Copyright. Stoichiometry. . Limiting and Excess Reactant. Standards. 3.3c. A balanced chemical equation represents the conservation of atoms. The coefficients in a balanced equation can be used to determine mole ratios in the reaction.. (aka limiting reagent). Excess Reactant. Theoretical, Actual, and Percentage Yield. Limiting Reactant. (aka limiting reagent). Limiting reactant. : The substance you run out of first, that is consumed first--The reactant that . Activity 2:. . Limiting Reactants in Chemical . reactions. by Trish Loeblein . . http://phet.colorado.edu. (assuming complete reactions). Learning Goals: . Students . will be able to: . Predict the amounts of products and leftovers after reaction using the concept of limiting reactant. stoichiometry. to solve problems where there may be one reactant in limited amount, which thus affects how much product can be produced.. The Limiting Reactant. Stoichiometry. Review. Write a balanced chemical equation. Percent Yield. When you make a peanut butter sandwich, you need 2 slices of bread and 1 tablespoon of peanut butter. The reactant that runs out first is called the limiting reactant. . Learning Goal . Mole and Mass Relationships. Fundamentals of General, Organic, and Biological Chemistry. 7th Edition. Chapter 6 Lecture. © 2013 Pearson Education, Inc.. Julie Klare. Gwinnett Technical College. McMurry, Ballantine, Hoeger, Peterson. During a chemical reaction, the amount of each reactant will determine how much product is formed.. The . limiting reagent. is the reactant that is . used up first . in the reaction, thus determining when the reaction stops.. Guiding Questions. How are dosages determined? . How are toxins measured and controlled?. . Which is better: eating beans and rice at separate meals . or together?. . Table of Contents. ‘Stoichiometry’. Stoichiometry. You should understand. Moles, mass, representative particles (atoms, molecules, formula . units), molar mass, and Avogadro’s number.. The percent composition of an element in a compound.. 9-3. 9-3 Learning Targets. Identify the limiting reactant in a chemical equation. Identify the excess reactant and calculate the amount remaining after the reaction is complete. Calculate the mass of a product when the amount of more than one reactant is given. Stoichiometry Unit Objectives. Solve reaction stoichiometry problems:. Mole- Mole. Mass – Mole. Mass-Mass. Mass Volume. Introduction. In any stoichiometry problem we start with a given quantity of a reactant or product. We use conversion factors and unit analysis to determine the quantities of the unknowns that react or form.. III.. . Limiting Reactants. . A. Why do reactions stop? Are all reactions 100% efficient?. Reactions might . stop. for a number of reasons including: . consumption. of one or multiple reactants; occurrence of side reactions; . The Meaning of K. . K > 1 . . the equilibrium position is far to the right . K < 1 . . the equilibrium position is far to the left . The value of . K. for a system can be calculated from a known set of equilibrium concentrations. . Limiting reactants. Percentage yield. Stoichiometry Problems. How many moles of KClO. 3. must decompose in order to produce 9 moles of oxygen gas? . = 6 mol KClO. 3. Problem: X mol. KClO. 3. .