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

CHAPTER 9Stoichiometry

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

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

EXAMPLES2. Sodium Chlorate Sodium Chloride + Oxygen

+NaClO3 NaCl O22 2 34.0 moles

.567 moles

6.0 moles4.0 moles

.378 moles .378 moles

EXAMPLES3. How many moles of Oxygen are produced from the

decomposition of .849 moles of Potassium Chlorate?

Potassium Chlorate Potassium Chloride + OxygenKClO3 O2KCl + 322

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

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

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

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)?

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

Examples2. Mg + 2 HCl MgCl2 + H2

Actual:

Examples3. 2 Al + 3 S Al2S3

Actual:

Examples4. If 1.00 gram of Hydrogen reacts with 6.00 grams

of Oxygen, determine the mass of product formed.

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

Documents

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

Chapter 4: Stoichiometry and aqueous reactionswebs.anokaramsey.edu/aspaas/1061/notes/1061-ch4blank.pdfChapter 4: Stoichiometry and aqueous reactions ch4blank Page 1 Which reactant

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

Limiting Reactant A.K.A. Stoichiometry. One reactant remains while the other is consumed in a reaction Mole ratio will help determine the limiting.

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

1 Stoichiometry Limiting Reagents: The extent to which a reaction takes place depends on the reactant that is present in limiting amounts—the limiting.

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

Limiting Reagents/Reactants. Limiting Reactant- the reactant that is completely consumed in the chemical reaction Excess Reactant- the reactant that is.

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

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 7 Stoichiometry Chapter 12. Objectives 7.17.1 use stoichiometry to determine the amount of substance in a reaction 7.27.2 determine the limiting.

LIMITING REACTANT AND THEORETICAL YIELD - … · I. Limiting Reactant One reactant will be used up first. Limiting reactant– the reactant that exists in the smallest proportional

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

Stoichiometry. The Basics What is stoichiometry? A method of determining the quantities of products produced in a chemical reaction or what amount.

Stoichiometry Limiting Reagent (Reactant) Dr. Ron Rusay.

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

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

Stoichiometry Lab Mass-Mass and Limiting Reactant.

Unit 7 Stoichiometry - · PDF fileObjectives 7.1 use stoichiometry to determine the amount of substance in a reaction 7.2 determine the limiting reactant of a reaction 7.3 determine

UNIT 5: STOICHIOMETRY · STOICHIOMETRY Law of conservation of mass: In any chemical reaction, the amount of matter present at the end of the reaction is the sameas the amount of matter

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