Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict...

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CHAPTER 9 Stoichiometry

Transcript of Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict...

Page 1: Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict the amount of product formed or the amount of reactant.

CHAPTER 9Stoichiometry

Page 2: Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict the amount of product formed or the amount of reactant.

I. STOICHIOMETRY Describes the mass and mole relationships in a

chemical reaction Use it to predict the amount of product formed

or the amount of reactant needed in a particular reaction

Page 3: Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict the amount of product formed or the amount of reactant.

EXAMPLES1. How many moles of each product are formed:

Sodium Chloride Sodium + Chlorine +NaCl Na Cl22 2

2.0 moles 2.0 moles 1.0 moles

4.0 moles 4.0 moles

8.0 moles

2.0 moles

1.0 moles 0.5 moles1.0 moles

8.0 moles 4.0 moles

Page 4: Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict the amount of product formed or the amount of reactant.

EXAMPLES2. Sodium Chlorate Sodium Chloride + Oxygen

+NaClO3 NaCl O22 2 34.0 moles

.567 moles

6.0 moles4.0 moles

.378 moles .378 moles

Page 5: Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict the amount of product formed or the amount of reactant.

EXAMPLES3. How many moles of Oxygen are produced from the

decomposition of .849 moles of Potassium Chlorate?

Potassium Chlorate Potassium Chloride + OxygenKClO3 O2KCl + 322

Page 6: Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict the amount of product formed or the amount of reactant.

EXAMPLES4. How many grams of Water are produced from the

decomposition of 1.42 moles of Sodium Hydroxide?Sodium Hydroxide Sodium Oxide + Water

NaOH Na2O + H2O

2

Page 7: Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict the amount of product formed or the amount of reactant.

EXAMPLES5. How many moles of Hydrogen are produced from the

reaction of 2.10 moles of Sodium with Water?

Sodium + Water Sodium Hydroxide + HydrogenNa + H2O NaOH + H22

Page 8: Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict the amount of product formed or the amount of reactant.

EXAMPLES6. Determine the mass of Fluorine that must react with

Lithium to produce 12.0 grams of Lithium Fluoride.

Lithium + Fluorine Lithium Fluoride Li + F2 LiF22

Page 9: Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict the amount of product formed or the amount of reactant.

II. LIMITING REACTANT The reactant that is present in least abundance

(less amount of moles) determines the amount of product formed.

Example: You need to make as many cakes as possible. Each cake requires 2 eggs, 2 cups of flour, and 1 cup of sugar. You have 6 eggs, 6 cups of sugar, and 4 cups of flour. Which is your limiting reactant (ingredient)?

Page 10: Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict the amount of product formed or the amount of reactant.

EXAMPLES1. Circle the limiting reactant: NaHCO3 + HCl NaCl + H2O + CO2

Given: 1.0 mole 1.5 mole

1.0 mole 1.0 mole 1.0 mole 1.0 mole 1.0 moleActual:

Given: .475 mole .214 mole

Actual: .214 mole.214 mole .214 mole .214 mole .214 mole

Page 11: Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict the amount of product formed or the amount of reactant.

Examples2. Mg + 2 HCl MgCl2 + H2

Given: 1.0 mole 1.5 mole

Actual:

Given: 2.0 mole 4.5 mole

Actual:

Page 12: Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict the amount of product formed or the amount of reactant.

Examples3. 2 Al + 3 S Al2S3

Given: 4.0 mole 5.0 mole

Actual:

Page 13: Stoichiometry. Describes the mass and mole relationships in a chemical reaction Use it to predict the amount of product formed or the amount of reactant.

Examples4. If 1.00 gram of Hydrogen reacts with 6.00 grams

of Oxygen, determine the mass of product formed.


Stoichiometry How much is consumed and produced in chemical reactions Labs #6 Formula of a Hydrate #7 Empirical Formulas #8 Limiting Reactant Chemical.

Stoichiometry How much is consumed and produced in chemical reactions Labs #6 Formula of a Hydrate #7 Empirical Formulas #8 Limiting Reactant Chemical.

Limiting Reagents. We have considered reactions with just the perfect amount of each reactant.

Limiting Reagents. We have considered reactions with just the perfect amount of each reactant.

Stoichiometry: Calculations with Chemical Formulas and ... · Stoichiometry: Calculations with Chemical Formulas and Equations ... Limiting Reactants • The limiting reactant is

Stoichiometry: Calculations with Chemical Formulas and ... · Stoichiometry: Calculations with Chemical Formulas and Equations ... Limiting Reactants • The limiting reactant is

Stoichiometry - DCSDwhs.dcsd.net/class/brippet/documents/CH9Stoichiometry.pdf · Stoichiometry The study of ... coefficients determine the ratio of each reactant to each product.

Stoichiometry - DCSDwhs.dcsd.net/class/brippet/documents/CH9Stoichiometry.pdf · Stoichiometry The study of ... coefficients determine the ratio of each reactant to each product.

Stoichiometry Ideal Stoichiometric Calculations. Stoichiometry Objectives Calculate the amount in moles of a reactant or a product from the amount.

Stoichiometry Ideal Stoichiometric Calculations. Stoichiometry Objectives Calculate the amount in moles of a reactant or a product from the amount.

Section 3: Limiting Reactants Stoichiometry. Learning Goals: 0 Identify the limiting reactant in a chemical equation. 0 Identify the excess reactant,

Section 3: Limiting Reactants Stoichiometry. Learning Goals: 0 Identify the limiting reactant in a chemical equation. 0 Identify the excess reactant,

STOICHIOMETRY Limiting Reactant Problems. Limiting Reactant You work in a bakery and your boss says that she wants you to bake as many cakes as you can.

STOICHIOMETRY Limiting Reactant Problems. Limiting Reactant You work in a bakery and your boss says that she wants you to bake as many cakes as you can.

Unit 1 Kinetics. Introduction M concentration massg mLL volume (s) (g) (aq) UnitAmountState of Reactant Δ means change Δ in Time Δ in Amount of Reactant.

Unit 1 Kinetics. Introduction M concentration massg mLL volume (s) (g) (aq) UnitAmountState of Reactant Δ means change Δ in Time Δ in Amount of Reactant.

Chemistry 103 Lecture 16. Outline I. Stoichiometry - Limiting Reactant - Percent Yield III. Classification of Reaction Types EXAM II - Thursday, July.

Chemistry 103 Lecture 16. Outline I. Stoichiometry - Limiting Reactant - Percent Yield III. Classification of Reaction Types EXAM II - Thursday, July.

Chapter 4 Stoichiometry of Chemical Reactionsstaff.buffalostate.edu/kimj/CHE111 Fall 2019_files/Chapter 4.pdf · • Stoichiometric calculations • Limiting reactant, theoretical

Chapter 4 Stoichiometry of Chemical Reactionsstaff.buffalostate.edu/kimj/CHE111 Fall 2019_files/Chapter 4.pdf · • Stoichiometric calculations • Limiting reactant, theoretical

Chapter 3 Stoichiometry - Lamar University · Chapter 3 Stoichiometry STOICHIOMETRY : The chemical arithmetic used to relate the amount of products and reactants to each other

Chapter 3 Stoichiometry - Lamar University · Chapter 3 Stoichiometry STOICHIOMETRY : The chemical arithmetic used to relate the amount of products and reactants to each other

Stoichiometry Limiting Reagent (Reactant) Dr. Ron Rusay.

Stoichiometry Limiting Reagent (Reactant) Dr. Ron Rusay.

Limiting Reactant II and Percent Yield A.K.A. Stoichiometry.

Limiting Reactant II and Percent Yield A.K.A. Stoichiometry.

Objectives SWBAT define stoichiometry. SWBAT write a mole ratio relating two substances in a chemical reaction. SWBAT calculate the mass of a reactant.

Objectives SWBAT define stoichiometry. SWBAT write a mole ratio relating two substances in a chemical reaction. SWBAT calculate the mass of a reactant.

Stoichiometry Goals: 1.Perform stoichiometry calculations. 2.Understand the meaning of limiting reactant. 3.Calculate theoretical and percent yields of.

Stoichiometry Goals: 1.Perform stoichiometry calculations. 2.Understand the meaning of limiting reactant. 3.Calculate theoretical and percent yields of.

1 Chapter 12: Day 5 Ch12_stoic. 2 STOICHIOMETRY CALCULATIONS Mass reactant Stoichiometric factor Moles reactant Moles product Mass product Molar mass.

1 Chapter 12: Day 5 Ch12_stoic. 2 STOICHIOMETRY CALCULATIONS Mass reactant Stoichiometric factor Moles reactant Moles product Mass product Molar mass.

COURSE OUTLINE5. Solve reaction stoichiometry problems, including determination of limiting reactant and calculation of theoretical yield and percentage yield. 6. Define oxidation

COURSE OUTLINE5. Solve reaction stoichiometry problems, including determination of limiting reactant and calculation of theoretical yield and percentage yield. 6. Define oxidation

LIMITING REACTANT. Limiting Reagent The reactant that is totally used up during the chemical reaction Limits the amount of product produced.

LIMITING REACTANT. Limiting Reagent The reactant that is totally used up during the chemical reaction Limits the amount of product produced.

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

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

STOICHIOMETRY - Texas Tech University … Stoichiometry Path Mass of Moles of ... limiting reactant. 3. Calculate the number of moles of each ... of which reactant will be left over?

STOICHIOMETRY - Texas Tech University … Stoichiometry Path Mass of Moles of ... limiting reactant. 3. Calculate the number of moles of each ... of which reactant will be left over?