PERCENT YIELD. Percent Yield Percent yield is the ratio of actual yield of an experiment to theoretical yield. To find percent yield, you divide the actual.

Slides:

Advertisements

Similar presentations

Stoichiometric Calculations

Advertisements

Chapter 3 Atomic masses Average atomic mass –Ex. What is the avg. atomic mass of a sample that is 69.09% amu and 30.91% amu? –0.6909(62.93amu)

Chemical Quantities Chapter 9

Limiting Reactants and Percentage Yield 9.2. Reactants Excess Reactant – will not be completely ______ up in a ______ that goes to __________ Limiting.

Stoichiometry Introduction.

Chapter 9 Chemical Quantities. 9 | 2 Information Given by the Chemical Equation Balanced equations show the relationship between the relative numbers.

Limiting/Excess Reactants and Percent Yield

Section 9.1 Using Chemical Equations 1.To understand the information given in a balanced equation 2.To use a balanced equation to determine relationships.

Limiting Reactants & Percent Yield

Chapter 9 – Review Stoichiometry

Limiting Reagent and Percent Yield

Stoichiometry Ashley Saylor, Courtney Ford, Sam Kaplan.

Finding Theoretical Yield and Percent Yield

Chapter 9 – STOICHIOMETRY

Stoichiometry Loose Ends: Limiting Reactants, Percentage Yield, and Percentage Error.

Percent Yield Section 12.4.

 All stoichiometry problems start with a balanced equation.  You must check for this!  If it is not balanced, BALANCE IT!

April 7, 2014 Today: Stoichiometry and % Yield. Percent Yield Remember, stoichiometry is used to tell you how much product you can form from X amount.

Stoichiometry and the Math of Equations Part 4: Percent Yield 1.

Stoichiometry Kelley Kuhn CCA. What the heck is stoichiometry? Stoichiometry is what we use in chemistry to solve problems. For example, you can use stoichiometry.

STAAR Ladder to Success Rung 8. How do chemists define a mole? Example #1: A sample consists of 6.85 x atoms of carbon. How many moles does the.

UNIT 6: STOICHIOMETRY PART 2: STOICHIOMETRY. KEY TERMS Actual yield - Amount of product was actually made in a reaction Dimensional analysis - The practice.

Stoichiometry Chapter 9 Limiting reagents. In Stoichiometry: We work in moles. We cannot calculate grams of product from grams of reactant.

Chapter 9 – STOICHIOMETRY The MATH of a CHEMICAL REACTION.

Percentage Yield and Energy Lesson 3. Sometimes reactions do not go to completion. Reaction can have yields from 1% to 100%. 1.How many grams of Fe are.

Chapter 9 Chemical Quantities. Copyright © Houghton Mifflin Company. All rights reserved. 9 | 2 Information Given by the Chemical Equation Balanced equations.

Chapter 9 Lecture Basic Chemistry Fourth Edition 9.4 Percent Yield Learning Goal Given the actual quantity of product, determine the percent yield for.

Chapter 12 Stoichiometry. 1. The part of chemistry that deals with the amount of substances involved in chemical reactions A. 3 basic steps to every stoichiometry.

Limiting Reactions and Percent Yield Calculating by moles or mass ©2011 University of Illinois Board of Trustees

Theoretical yield: amounts of product calculated from the limiting reagent. Actual yield: amount produced during the conducted experiment. Percentage.

Stoichiometry: A calculation based on a balanced equation. Granada Hills Charter High School.

Stoichiometry Section 1 – Introduction to Stoichiometry, and Quantitative Relationships of Chemical Formulas Section 2 – Mathematics of Chemical Equations.

10-3: Empirical and Molecular Formulas. Percentage Composition The mass of each element in a compound, compared to the mass of the entire compound (multiplied.

Limiting reagents In lab a reaction is rarely carried out with exactly the required amounts of each reactant. In lab a reaction is rarely carried out with.

Stoichiometry & Limiting Reactants. Stoichiometric Calculations The coefficients in the balanced equation give the ratio of moles of reactants and products.

Chapter 9 - Stoichiometry

Copyright©2004 by Houghton Mifflin Company. All rights reserved. 1 Introductory Chemistry: A Foundation FIFTH EDITION by Steven S. Zumdahl University of.

Percent Yield. Definitions The theoretical yield is the maximum amount of product that could be made from the reactants. The actual yield is the amount.

Products Percent Yield. Theoretical Yield Maximum amount of product Calculation Balanced Equation Given mass Molar Mass Mole Ratios.

Actual and Percent Yields So far when we have been talking about reactions we have been talking about 100% of the (limiting) reactant becoming a product.

Stoichiometry. Warm-Up Example of stoich problem Magnesium metal burns in the air Mg (s) + O 2(g) MgO (s) 2 Mg (s) + O 2(g) 2 MgO (s) 3g? g.

Percentage Yield.

Limiting Reactants, Theoretical Yield, and % Yield.

Stoichiometry Chapter 9 Percent Yield Stoich ppt _5 Percent Yield.

Stoichiometry Predicting amounts of reagents needed or amounts of products made.

Ch. 9-3 Limiting Reactants & Percent Yield. POINT > Define limiting reactant POINT > Identify which reactant is limiting in a reaction POINT > Define.

Chemistry Chapter 9 - Stoichiometry South Lake High School Ms. Sanders.

SOL Review 6 Stoichiometry. Consider: 4NH 3 + 5O 2  6H 2 O + 4NO Many conversion factors exist: 4 NH 3 6 H 2 04NO 5O 2 (and others) 5 O 2 4 NO4 NH 3.

Stoichiometry Notes. Stoichiometry branch of chemistry that deals with the mass relationships of elements in compounds and the mass relationships between.

Stoichiometry From the Greek words “stoicheion” meaning “element”

Combustion Analysis A g sample composed of C, H, N is burned to produce g CO2 and g H2O Assume all C in the sample is converted to CO2.

Percent Yield in a Chemical Reaction.

Chapter 9 STOICHIOMETRY

Chapter 12 Review.

Theoretical Yield.

Stoichiometry Comes from the Greek words stoicheion, meaning “element,” and metron, meaning “measure.”

Stoichiometry Vocab Theoretical Yield: the calculated amount of product yielded by a reaction (found through stoichiometry) Actual Yield: the actual amount.

Chapter 9 Chemical Quantities in Reactions

II. Stoichiometry in the Real World (p. 368 – 375)

Stoichiometry Chapter 12.

How many moles of water are made by

Percent Yield Unit 8 Lesson 3.

Stoichiometry & Limiting Reactants

Information Given by Chemical Equations

Percent Yield Unit 7 Lesson 3.

Stoichiometry Presentation

Mass to Mass Conversions

Presentation transcript:

PERCENT YIELD

Percent Yield Percent yield is the ratio of actual yield of an experiment to theoretical yield. To find percent yield, you divide the actual yield by the theoretical yield and multiply by 100. A problem will give you the actual amount but you need to calculate the theoretical amount through stoichiometry.

Example 1 C 5 H O 2  5CO 2 + 6H 2 O If you produce 10 moles of H 2 O from 15 moles of O 2, what is the percent yield? actual theoretical

Example 2 C 5 H O 2  5CO 2 + 6H 2 O If you produce 12 moles of CO 2 from 5 moles of C 5 H 12, what is the percent yield? actual theoretical

Practice 1 - Change #s and comp C 5 H O 2  5CO 2 + 6H 2 O If you produce 35 moles of H 2 O from 8 moles of C 5 H 12, what is the percent yield?

Practice 2 C 5 H O 2  5CO 2 + 6H 2 O If you produce 4 moles of CO 2 from 9 moles of O 2, what is the percent yield?

Practice 3 C 5 H O 2  5CO 2 + 6H 2 O If you produce 10 moles of H 2 O from 14 moles of O 2, what is the percent yield?