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Excess-Limiting Reaction Practice 2 Al + 6 HCl 2 AlCl H 2 25 g of aluminum are reacted with 75 g of hydrochloric acid, what mass of hydrogen gas is produced? Solution: compare Limiting = HAVE < NEED Limiting Excess Use the Limiting Reactant: HAVE NEED (1) © Mr D Scott; CHS
Excess-Limiting Reaction Practice 2 K + F 2 2 KF 5.0 g of potassium are reacted with 5.0 g of fluorine; what mass of potassium fluoride is produced? Solution: Compare Limiting = HAVE < NEED Limiting Excess Use the Limiting Reactant: HAVE NEED (2) © Mr D Scott; CHS
Excess-Limiting Reaction Practice 2 H 2 + O 2 2 H 2 O 7.0 g of hydrogen gas are reacted with 52 g of oxygen gas, what mass of water is produced? Solution: compare Limiting = HAVE < NEED Limiting Excess Use the Limiting Reactant: HAVE NEED (3) © Mr D Scott; CHS
Excess-Limiting Reaction Practice AlCl NH 4 F AlF NH 4 Cl 12 g of aluminum chloride are reacted with 11 g of ammonium fluoride, what mass of ammonium chloride is produced? Solution: Compare Limiting = HAVE < NEED Limiting Excess Use the Limiting Reactant: HAVE NEED (4) © Mr D Scott; CHS
Stoichiometry & Percent Yield Practice 2 Al + 6 HCl 2 AlCl H 2 95 g of hydrochloric acid are reacted with excess aluminum producing 2.2 g of hydrogen.
Unit: Stoichiometry Using mole ratios and review of balancing chemical equations Day 1 - Notes.
Ideal Gas Equation PV=nRT Practice Problems. 2 AlCl 3 2 Al + 3 Cl 2 ↑ If 13 g of aluminum chloride react, what volume of chlorine gas will be collected.
In the reaction: CH 4 + 2O 2 CO 2 + 2H 2 O How many moles of CH 4 react with 6 moles of O 2 ? A.2 moles B.4 moles C.3 moles D.1 mole.
Unit 10: Stoichiometry Using mole ratios and review of balancing chemical equations.
Test Review Chemical Reactions and Stoichiometry.
Chapter 19 Gas Stoichiometry. If an excess of chlorine gas reacts with a solution containing 20.0g of potassium bromide how many cm 3 of bromine gas can.
S t o i c h i o m e t r y A q u a n t i t a t i v e s t u d y o f c h e m i c a l c h a n g e s.
Balance the following equation. Fe + O 2 Fe 2 O 3 4Fe + 3O 2 2Fe 2 O 3 This means that when we combine four atoms of iron with three molecules.
4Na + O 2 2Na 2 O How many grams of Sodium Oxide can be produced from 25g of Sodium? 25 g Na 1 mole 23.0g 23.0g =1.08 mole Na 2Na 2 O 2Na 2 O 4 Na.
Solving a Stoichiometry Problem 1.Balance the equation. 2.Convert given to moles. 3.Determine which reactant is limiting. 4.Use moles of limiting reactant.
Chemical Reactions By Mr Hem. Compound Ions Ammonium NH 4 1+ Hydrogen Carbonate NCO 3 1- Hydroxide OH 1- Nitrate NO 3 1- Carbonate CO 3 2- Sulfate SO.
1. Group Quiz. Solid lithium reacts with oxygen gas to produce lithium oxide: a. write a formula for each substance b. Identify reactants and products.
A _________ is a substance that speeds up a chemical reaction without being permanently consumed in the reaction. catalyst.
K 3 PO 4 + HCl KCl + H 3 PO 4 = K = = PO 4 = = H = = Cl = K PO 4 K K ClH PO 4 H H H Cl K.
CHAPTER 9 STOICHIOMETRY. 9.1 & 9.2 INTRODUCTION TO STOICHIOMETRY AND IDEAL STOICHIOMETRIC CALCULATIONS.
Stoichiometry. What Is It? Branch of chemistry that shows the relationships among reactants and products in a chemical reaction Equations must be balanced.
Limiting Reactants and Percent Yield Limiting Reactant Most of the time in chemistry we have more of one reactant than we need to completely use up other.
1 STOICHIOMETRY Mass - Mass TUTORIAL By: Dr. Paul Gilletti Mesa Community College Modified By: Dr. Rick Moleski Scott High School.
1. Test 8 % grade = ___. 2. I studied by … 3. Next time I will study by … 4. Goal for next time = ____ If you did not meet your goal it stays the same.
Telling a story….. Writing Chemical Equations Identify reactants, write chemical formulas. Identify products, write chemical formulas. Write.
Quiz February 23 1.Find the atomic mass of Al. 2.Find the gram formula mass of Cu 2 O. 3.Underline the important information in the stoichiometry problem.
Chapter 19 Gas Stoichiometry. The next two slides contain GFM problems involving PV=nRT. The first is the last problem from yesterdays lecture if we did.
Chemical Equations and Reactions Section 8.1. What is a chemical reaction? Any change where a new chemical is formed. Indications of a chemical reaction:
STOICHIOMETRY PRACTICE. 1. When solid aluminum chloride is heated at high temperatures, solid aluminum and chlorine gas are produced. a. Write and balance.
What is stoichiometry? A problem solving method used to calculate the amount of product made or amount of reactant needed in a chemical reaction What is.
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.
04/17 Kinda like a recipe 4 Eggs + 3 Bacon 2 Omelets 8 Eggs + ? Bacon ? Omlets Al + 3O 2 2 Al 2 O 3 8 Al+? O 2 ? Al 2 O 3 + +
Which of the following is an empirical formula? a. C 2 H 6 O 2 b. C 4 H 8 O 10 c. C 2 H 2 O 2 d. C 2 H 3 O 2.
Symbols Used in Chemical Equations. SymbolMeaning.
9.3 Notes. Learning Targets Given the quantities of reactants in a chemical reaction, determine the limiting and excess reactants.
MAYHAN Ch. 10/12 Moles to % yield Review ws DEFINE MOLE. MAYHAN HOW IS THE MOLE USED IN CHEMISTRY? A mole is 6.02 x “things” These things are any.
L3: Chemical Formulas and Word Equations Learning Objectives: 1.Understand what information a chemical formula tells you. 2.Write simple word equations.
Stoichiometry Stoichiometry Consider the chemical equation: 4NH 3 + 5O 2 6H 2 O + 4NO There are several numbers involved. What do they all mean? “stochio”
Mr. Quinn & Ms. TomFebruary 6, 2014 Aim: How do we predict the amount of product formed in a chemical reaction? Do Now: balance the following chemical.
Read pages , define chemical equation and skeleton equation, AND complete #s 1 and 2 on page 349. Assignment Day
1 Writing Chemical Equations to Symbolize Chemical Reactions.
Stoichiometry: The math relationships between substances involved in chemical reactions. Stoichiometry allows us to make predictions How much of A do we.
Daily Science feb How many grams of CH 4 is needed to produce 50.0 g CHCl 3 ? CH 4 + 3Cl 2 CHCl 3 +3HCl Lithium reacts spontaneously with bromine to.
The Math of Equations Stoichiometry the calculation of quantities in chemical reactions.
Chemistry Jeopardy SD/DRWrite the Formula Chemical Equation NamePredict Products Misc
1.1.2 Moles and equations This Powerpoint contains the questions and answers for the activities 1-20.
Bell Work What is the chemical formula for Barium Hydroxide? What is the formula for Calcium Nitrate?
Limiting Reagent Problem. Calculate the mass of aluminum chloride that can be produced from 20.0 g of aluminum and 30.0 g of chlorine gas. Step 1: Write.
Gas Stoichiometry I know you are SO happy you get to do stoichiometry again!
Stoichiometry Chapter 12 Chemistry. Making Chocolate Chip Cookies This recipe makes 20 cookies. How much oatmeal is needed to make 10 cookies? How many.
Ionic and Covalent Bonding Examples Lithium and Oxygen Li O 3 4 e Li Li +1 O -2 Li 2 O Lithium Oxide.
Calculating Reacting Masses HIGHER LESSON. Learning Objectives To explain what chemical equations tell us about chemical reactions To explain how we use.
Balancing Chemical Reactions. Steps to Success in Balancing Chemical equations 1.Figure out whose a reactant and whose a product 2.Write the formulas.
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