'Mol o2' diaporamas de présentation

Thermochemistry

Thermochemistry. Interna l Energy Kinetic energy Potential energy. Thermochemistry. Internal Energy Kinetic energy Potentia l energy. Chemical Energy Changes. System and Surroundings. Exothermic Reaction. Endothermic Reaction. Thermochemistry.

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Equilibrium

Equilibrium. Reactions are reversible. A + B C + D ( forward) C + D A + B (reverse) Initially there is only A and B so only the forward reaction is possible As C and D build up, the reverse reaction speeds up while the forward reaction slows down. Eventually the rates are equal.

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Chapter 9

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Love, Life and Stoichiometry

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Chapter 9 Stoichiometry

Chapter 9 Stoichiometry. Milbank High School. Section 9.1 The Arithmetic of Equations. OBJECTIVES: Calculate the amount of reactants required, or product formed, in a nonchemical process. Section 9.1 The Arithmetic of Equations. OBJECTIVES:

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Module 3.09 Literacy

Module 3.09 Literacy. Molar Mass of Compounds. **Please make sure you have a periodic table, calculator and something to write with ?. Standards and Objectives. Objectives: -Calculate the molar mass of a given compound -Determine the empirical formulas from given data Standard:

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Chocolate Chip Cookies

Chocolate Chip Cookies. 2.25 cups flour 8 Tbsp butter 0.5 cups shortening 0.75 cups sugar 0.75 cups brown sugar 1 tsp salt 1 tsp baking soda 1 tsp vanilla 0.5 cups Egg Beaters 1 bag chocolate chips. How much?. Of what?. What units?. Chocolate Chip Cookies. 2.25 cups flour

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Std 4 - Questions 21-39

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Chapter 8

Chapter 8 . Stoichiometry: Moles meet Reactions! Calculating quantities from chemical reactions. . Write the equation for combination reaction between sodium and chlorine. 2. 2. Na + Cl 2 NaCl. The above equation can mean:

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Catalyst: 1 Double Cheeseburger needs 1 bun, 2 patties, 2 slices of cheese, 4 strips of bacon

Please TURN IN C.7/C.10 worksheet Objectives: Determine the limiting reagent in a reaction. Calculate the percent yield of a product in a reaction. Catalyst: 1 Double Cheeseburger needs 1 bun, 2 patties, 2 slices of cheese, 4 strips of bacon

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Stoichiometry Notes

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Stoichiometry Percent Yield

Stoichiometry Percent Yield. Important Terms. Yield : the amount of product Theoretical yield : the maximum amount of product expected, based on stoichiometric calculations Actual yield : amount of product from a procedure or experiment (this is often given in a question)

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Chapter 11 Section 3

Chapter 11 Section 3. Limiting Reagent & Percent Yield. Limiting Reagent (= Reactant). What does it mean? Consider making cars. If you had 100 car bodies and 300 tires, how many cars can you make given the equation? 1 car body + 4 tires ? 1 car Animation of Limiting Reagent

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Limiting and Excess Reactants

Limiting and Excess Reactants. LIMITING REACTANTS. LIMIT HOW MUCH OF THE PRODUCT CAN ACTUALLY BE PRODUCED DURING THE REACTION. EXCESS REACTANTS. The reactants that are left over when the reaction stops. *When all the limiting reactant is used up. How to find the limiting reactants.

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Molecular Composition of Gases

Molecular Composition of Gases. Stoichiometry of Gases. Objectives. Apply the principles of stoichiometry to determine the volume of any gas that is produced or consumed in a chemical reaction. Volume-Volume Calculations.

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Energy & Stoichiometry

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The Arithmetic of Equations

The Arithmetic of Equations. Section 9.1. Interpreting Chemical Equations. In terms of moles : Example Equation: 2H 2 + O 2 ? 2H 2 O. 2 mol H2 +. 1 mol O2 = . 2 mol H2O . Interpreting Chemical Equations. In terms of particles:

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Mg(OH) 2 + 2HCl ? 2H 2 O + MgCl 2

To completely react 0.40 mol of magnesium hydroxide, 0.80 mol of hydrochloric acid will be required. Mg(OH) 2 + 2HCl ? 2H 2 O + MgCl 2. 0.40 mol Mg(OH) 2 x 2 mol HCl = 0.8 mol HCl 1 mol Mg(OH) 2.

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2KClO 3 (s) ? 2KCl (s) + 3O 2 (g)

Given the following UNBALANCED equation, determine how many moles of potassium chlorate are needed to produce 10.0 mol of oxygen gas. 2KClO 3 (s) ? 2KCl (s) + 3O 2 (g). 10 mol O 2 x 2 mol KClO 3 = 6.67 mol KClO 3 3 mol O 2.

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Theoretical Yield, Actual Yield, and Percent Yield

Theoretical Yield, Actual Yield, and Percent Yield. The amount of product we get if the reaction is perfect is called the theoretical yield . -- It is found by calculation. If we ACTUALLY DO the reaction and measure the actual yield , we will find that this amount is

626 views • 3 slides