Stoichiometry

Jul 28, 2012

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Stoichiometry

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1. Stoichiometry

Stoichiometry

Stoichiometry. Study of mass and chemical amounts. 1. Compound stoichiometry 2. Reaction stoichiometry. Connecting the Macro and Atomic Scales: The Mole. Chemical macroscopic counting unit: 1 mole contains 6.022 x 10 23 particles 6.022 x 10 23 is Avogadro’s number , named after

770 views • 28 slides

Stoichiometry

Stoichiometry. General definitions. Element- a pure substance which cannot be broken down by any ordinary chemical means. Molecule- two or more atoms chemically bonded together. Example O 2 , H 2 O

1.04k views • 26 slides

STOICHIOMETRY

STOICHIOMETRY. What is stoichiometry?. Stoichiometry is the quantitative study of reactants and products in a chemical reaction. What You Should Expect. Given : Amount of reactants Question: how much of products can be formed. Example 2 A + 2B 3C

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Stoichiometry

Stoichiometry . Chapter 9 Combining Reactions and Mole Calculations. The Arithmetic of Equations. When you know the quantity of one substance in a reaction, you can calculate the quantity of any other substance consumed or created in a reaction.

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Stoichiometry

Stoichiometry. Stoichiometry. ____________ - measuring the amounts of substances involved in chemical reactions and relating them to one another. Steps. Write the ____________ chemical equation Start with your ____________ Cross out until you get what you want

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Stoichiometry

Stoichiometry. L. What is it really?. Cooking Method of finding how many cookies you can make given these ingredients how many ingredients you had to make this many cookies. All goes back to balanced equations. First write the equation and balance it.

1.05k views • 27 slides

Stoichiometry

Stoichiometry. 12.1 The Arithmetic of Equations 12.2 Chemical Calculations 12.3 Limiting Reagent and Percent Yield. The Arithmetic of Equations. Objectives Explain how balanced equations apply to both chemistry and everyday life

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Stoichiometry

Stoichiometry. “In solving a problem of this sort, the grand thing is to be able to reason backward. This is a very useful accomplishment, and a very easy one, but people do not practice it much.”. Sherlock Holmes, in Sir Arthur Conan Doyle’s A Study in Scarlet. Review : Chemical Equations.

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Stoichiometry

Stoichiometry. Using the coefficients of a balanced chemical reaction to determine the amounts (moles, grams, liters) of reactants and productsThe coefficients will show the mole ratio between reactants and products. . . Interpreting Chemical Equations. N2 (g) 3 H2 (g) ?2 NH3 (g)Molecules

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Stoichiometry

Stoichiometry. Cake Recipe. Ingredients for12 servings : 8 Eggs (E) 2 cups Sugar (Su) 2 cups Flour (Fl) 1 cup Butter (Bu) Calculate the amount of ingredients needed for 40 servings. What is Stoichiometry?.

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Stoichiometry

Stoichiometry. Mr Field. Using this slide show. The slide show is here to provide structure to the lessons, but not to limit them….go off-piste when you need to!

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Stoichiometry

Stoichiometry. The Study of Quantitative Relationships. What is Stoichiometry?.

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Stoichiometry

Stoichiometry. What is stoichiometry ?. Stoichiometry is the study of the quantitative, or measurable , relationships that exist in chemical formulas and chemical reactions. ( Calculations that relate quantities of substances are known as stoichiometry problems.).

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Stoichiometry

Stoichiometry. Unit 6. Topic 1. Intro / mole to mole. Stoichiometry. Quantitative study of chemical reactions The basic question - how much? - is the object of stoichiometry .

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STOICHIOMETRY

STOICHIOMETRY. Calculations Based on Chemical Equations. Iron (III) oxide reacts with carbon monoxide to form iron and carbon dioxide. 3. 2. 3. Fe 2 O 3 + CO ï‚® Fe + CO 2. How many CO molecules are required to react with 25 particles of Fe 2 O 3 ?.

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Stoichiometry

Stoichiometry. What’s that you said?. What is Stoichiometry?. Stoichiometry is the numerical relationships in chemical reactions. Let’s build a Tricycle (aka FSW 3 HP 2 ). For each tricycle we need : 1 frame (F) 1 seat (S) 3 wheels (W) 1 handlebar (H) 2 pedals (P)

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STOICHIOMETRY

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. You have a 100 pound bag of sugar and a 100 pound bag of flour. Which ingredient will you run out of first?

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Stoichiometry

Stoichiometry. Mathematics & Science Center. Brainstorm. What do you already know about chemical reactions?. Mole. A Counting Number Equal To 6.02 X 10 23 individual units. A mass in grams equal to the atomic mass or the formula mass of a substance.

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Stoichiometry

Stoichiometry. The quantitative study of chemical reactions. Stoichiometric Steps. Set up & balance rxn Change stuff given to moles Change moles given to ask Change what’s asked for to the proper unit. Step 1. Determine products of a reaction if they are not given Balance the reaction.

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Stoichiometry

Stoichiometry. Balanced Equations. All stoichiometry problems start with a balanced equation. You must check for this! If it is not balanced, BALANCE IT!. Reviewing Balancing Equations. S. Fe. Fe 2 S 3. S. Fe. S. Can change coefficients but CANNOT change subscripts Example

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Stoichiometry

Stoichiometry. A measure of the quantities consumed and produced in chemical reactions. Atomic Mass. Is measured in either amu or in grams / mol 1 amu is exactly 1/12 the mass of a Carbon - 12 atom so it serves as the standard for all other atoms

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Stoichiometry

Stoichiometry. Calculating quantities in chemical reactions. Stoichiometry. 1 frame and 3 wheels are needed to create one tricycle. If I use 1 dozen frames , how many tricycles can I make?. 1 dozen. If I use 1 dozen wheels, how many tricycles can I make?. 4 or (1/3 dozen).

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