U NIT 8: M EASUREMENTS AND C ALCULATIONS IN CHEMISTRY – S TOICHIOMETRY I Dr. Chin Chu Chemistry River Dell High School.

Slides:

Advertisements

Similar presentations

How many moles of water will be produced when 8 grams of hydrogen gas react with the oxygen in the air? Episode 801.

Advertisements

U NIT 8: M EASUREMENTS AND C ALCULATIONS IN CHEMISTRY – S TOICHIOMETRY II Dr. Chin Chu Chemistry River Dell High School.

Stoichiometry – “Fun With Ratios”

Mole Ratios in Chemical Equations

STOICHIOMETRY.  Stoichiometry is the science of using balanced chemical equations to determine exact amounts of chemicals needed or produced in a chemical.

UNIT VII Stoichiome-tree Lesson 1. VII.1 C OEFFICIENTS IN A R EACTION E QUATION : Stoichiometry : The relationship between the amount of reactants used.

In any chemical reaction, it is easy to run out of one or another reactant – which has an impact on the amount of products that can result from a reaction.

Chapter 8 - Review Chemical Reactions

and cooking with chemicals

Section 8.3 pg In any chemical reaction, it is easy to run out of one or another reactant – which has an impact on the amount of products that.

Stoichiometry with a Twist

Introduction to Stoichiometry What is Mole Ratio? How can I determine mole ratio from balanced equation?

Quantitative Relationships (Stoichiometry). Lets take a moment… sit back… relax… and review some previously learned concepts… Lets take a moment… sit.

NOTES: 11.1 – Writing and Balancing Chemical Equations

Stoichiopardy Holy Moley Do the 2 or 3 step Random Limit my Percent Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Chempardy.

April 3, 2014 Stoichiometry. Stoichiometry is the study of quantities of materials consumed and produced in chemical reactions Stoikheion (Greek, “element”)

Chemical Equations IV Stoichiometric Calculations.

Chapter 12 Stoichiometry.

Aim: Using mole ratios in balanced chemical equations.

Stoichiometry Calculating Masses of Reactants and Products.

Stoichiometry – “Fun With Ratios” Main Idea: The coefficients from the balanced equation tell the ratios between reactants and products. This ratio applies.

Chapter 11 Review “Chemical Reactions”

Solutions Definitions Types of Reactions Potpourri.

Do Now:  What is a chemical reaction?  What is a reactant?  What is a product?  Why do substances react with each other?

Solution types of stoichiometry problems are no harder than any other stoichiometry problem. You must use the concentration given (molarity) to convert.

Stoichiometry. Information Given by the Chemical Equation  The coefficients in the balanced chemical equation show the molecules and mole ratio of the.

Stoichiometry. The study of chemical changes is at the heart of chemistry. Stoichiometry is the area of study that examines the quantities of substances.

Stoichiometry Mole-Mole. Mole Ratio A mole ratio is a conversion factor that relates the amounts in moles of any two substances involved in a chemical.

Stoichiometry The study of quantities of materials consumed and produced in chemical reactions.

Chemical Calculations Stoichiometry OBJECTIVES: – Calculate stoichiometric quantities from balanced chemical equations using units of moles and mass.

Stoichiometry. What Is It? Branch of chemistry that shows the relationships among reactants and products in a chemical reaction Equations must be balanced.

U NIT 8: M EASUREMENTS AND C ALCULATIONS IN CHEMISTRY - M OLE AND N UMBERS OF P ARTICLES II Dr. Chin Chu Chemistry River Dell High School.

Stoichiometry Chemical Quantities Chapter 9. What is stoichiometry? stoichiometry- method of determining the amounts of reactants needed to create a certain.

Chapter 11 Review “Chemical Reactions”. Chapter 11 Review What is true about the decomposition of a simple binary compound? Balance: _Fe + _Cl 2 → _FeCl.

Chapter 11 Review “Chemical Reactions”. Balance: _Fe + _Cl 2 → _FeCl 3 In a combustion reaction, one of the reactants is ____.

Reaction Stoichiometry. Objectives Understand the concept of stoichiometry. Be able to make mass-to-mass stoichiometric calculations.

Stoichiometry A chemical equation shows the reactants (left side) and products (right side) in a chemical reaction. A balanced equation shows, in terms.

No Bell Ringer Today. We will have a test next Tuesday.

Quiz Write the balanced formula equation for the following reaction: 1) Solid barium and oxygen gas react to produce solid barium oxide. Write the balanced.

Stoichiometry Introduction to Stoichiometry. Stoichiometry  Objectives  Define stoichiometry  Describe the importance of the mole ratio in stoichiometric.

 Predict the products and write a balanced equation for the following: BaCl 2 + MgSO 4 

Stoichiometry Warmup I have 1 mole of CO 2 gas at STP. How many grams of CO 2 do I have? How many Liters of CO 2 do I have? How many molecules of CO 2.

UNIT VII Stoichiome-tree Unit 7: Lesson 1. S TOICHIOMETRY Stoichiometry : The relationship between the amount of reactants used in a chemical reaction.

Stoichiometry is… Greek for “measuring elements” Defined as: calculations of the quantities in chemical reactions, based on a balanced equation. There.

Stoichiometry and cooking with chemicals.  Interpret a balanced equation in terms of moles, mass, and volume of gases.  Solve mole-mole problems given.

Limiting Reactant. Stoichiometry Refresher Recall: The mole ratio can be used to determine the quantity (moles) or mass of reactants consumed and products.

Can’t directly measure moles Measure units related to moles: –Mass (molar mass) –Number of particles (6.02 x ) –Liters of gas (22.4 Liters at STP)

Students type their answers here

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

Challenge Problem When nitrogen and hydrogen react, they form ammonia gas, which has the formula NH 3. If 56.0 g of nitrogen are used up in the reaction,

Mass-Mass Conversions 56.0 g N 2 x g N 2 g NH = 1904 = When nitrogen and hydrogen react, they form ammonia gas, which has the formula.

Stoichiometry  the calculations of quantities in chemical reactions  “stoichio” = elements  “metry” = to measure.

THIS IS With Host... Your VocabularyMole to mole Limiting Reactants Mass to mass Mass to Mole Percent Yield.

I. Balanced Equations Show Proportions. A. Relative Amounts in Equations Can be Expressed in Moles Stoichiometry -The branch of chemistry that deals with.

Ch. 9.1 & 9.2 Chemical Calculations. POINT > Define the mole ratio POINT > Use the mole ratio as a conversion factor POINT > Solve for unknown quantities.

 A process by which one or more substances are changed into one or more different substances. Reactants  Products.

Chapter 9A Notes Stoichiometry

Stoichiometry with a Twist

Mathematics in Chemistry

7.1Mole Ratios in Chemical Equations

Chapter 12 Review.

CHAPTER 9 STOICHIOMETRY

Intro to Stoichiometry & the Mole

Warm-Up How many molecules are in 5.78 mol of ammonium nitrate?

STOICHIOMETRY Mole to Mole.

Stoichiometry Chemistry II Chapter 9.

Chemical Calculations

Bell Work: Intro to Stoicheometry

Presentation transcript:

U NIT 8: M EASUREMENTS AND C ALCULATIONS IN CHEMISTRY – S TOICHIOMETRY I Dr. Chin Chu Chemistry River Dell High School

C HEMICAL R EACTIONS Nitrogen gas reacts with hydrogen gas to form ammonia gas.

C HEMICAL REACTIONS

STOICHIOMETRY Definition – a branch of chemistry that deals with the relative quantities of reactants and products in chemical reactions.

S TOICHIOMETRY – EXERCISE PROBLEMS What are the mole ratios for the balanced chemical reaction: CH 4 + 2O 2  CO 2 + 2H 2 O? What are the mole ratios for the chemical reaction: element phosphorus reacts with oxygen gas to form diphosphorus pentoxide? 2Ag 2 O  4Ag + O 2, how many moles of metallic silver and oxygen gas will be produced when 3.27 moles of silver oxide are completely decomposed? The balanced chemical equation for a double- replacement reaction is: FeCl 3 (aq) + 3NaOH(aq)  Fe(OH) 3 (p) + 3NaCl(aq). What are the moles of each reactant needed to produce 2.68 moles of Fe(OH) 3 precipitate?

S TOICHIOMETRY – ANSWERS What are the mole ratios for the balanced chemical reaction: CH 4 + 2O 2  CO 2 + 2H 2 O? [1 mol(CH 4 ) = 2 mol(O 2 ) = 1 mol(CO 2 ) = 2 mol(H 2 O)] What are the mole ratios for the chemical reaction: element phosphorus reacts with oxygen gas to form diphosphorus pentoxide? [4P + 5O 2  2P 2 O 5, 4 mol(P) = 5 mol(O 2 ) = 2 mol(P 2 O 5 )] 2Ag 2 O  4Ag + O 2, how many moles of metallic silver and oxygen gas will be produced when 3.27 moles of silver oxide are completely decomposed? [Ag: 6.54 mol; O 2 : 1.64 mol] The balanced chemical equation for a double-replacement reaction is: FeCl 3 (aq) + 3NaOH(aq)  Fe(OH) 3 (p) + 3NaCl(aq). What are the moles of each reactant needed to produce 2.68 moles of Fe(OH) 3 precipitate? [FeCl3: 2.68 mol, NaOH: 8.04 mol]