PERCENT YIELD. •is a ratio between actual yield and theoretical yield to measure a chemical reaction's efficiency. It can be calculated.
http://www.csun.edu/~hcchm001/LIMITREG.pdf
7.5 Percent Yield Notes (KEY). April 04 2017. 7.5 Percentage Yield. Every summer
Percent Yield - Notes & Examples (Reference Handouts). Theoretical Yield – amount of product that is possible to make (from calculations).
?Identify limiting reactants and calculate amounts in grams or moles
Mar 1 2017 Stoichiometry and Percent Yield Notes/Practice.notebook. Steps for Stoichiometry. 1. Write chemical equation.
Example Problem: In the lab adding hydrochloric acid
PERCENT YIELD NOTES. Theoretical Yield: the amount of product predicted to form on the basis of the balanced chemical equation.
Notes Limiting Reactant and Percent Yield. Limiting Reactants. Once one of the reactants is used up no more product can be.
Calculate the percent yield. • Bornite (CuFeS3) is a copper ore used in the production of copper. When heated with oxygen gas pure copper is obtained
PERCENT YIELD is a ratio between actual yieldand theoretical yieldto measure a chemical reaction’s efficiency It can be calculated by using the following equation: = × 1 Suzi McStruggles was in the lab following a procedure and by her calculations she should make 27g of table salt (NaCl) so that she can season her lunch
Percent Yield - Notes & Examples (Reference Handouts) Theoretical Yield – Actual Yield – Percent yield is a ratio between actual yield and theoretical yield to measure a chemical reaction’s efficiency It can be calculated by using the following equation: Yield = For the following problems calculate the percent yield: 1
Chemists calculate the percent yield of reactions to predict product amount Actual Yield: measured mass of product Theoretical Yield: maximum product mass possible from a given amount of reactant: use stoichiometry Percent Yield AgNO3: 169 9 g/mol Ag2CrO4: 331 7 g/mol 2 2 1 Percent Yield Example In a reaction silver chromate forms when excess
The theoretical yield is the amount of the product (in g) formed from thelimiting reagent Identify the ACTUAL YIELD: The actual yield is the amount of the product (in g or mol) actually formed inthe laboratory Calculate the PERCENT YIELD: The percent yield is based upon the theoretical yield
Percent yield is the ratio of actual yield to theoretical yield expressed as a percent Actual yield Yield = X 100Theoretical yield Example: Silver chromate forms when potassium chromate is added to a solution containing 0 500 g of silver nitrate Determine the theoretical yield of silver chromate
Percent Yield “Slaked lime” Ca(OH)2 is produced when water reacts with “quick lime” CaO If you start with 2 400 g of quick lime add excess water and produce 2 060 g of slaked lime what is the percent yield of the reaction? 2060 g = actual yield CaO + H2O Ca(OH) 2 2400 g excess x g = theoretical yield