'Excess reagent' presentation slideshows

Ch 4. Chemical Quantities and Aqueous Reactions

Ch 4. Chemical Quantities and Aqueous Reactions. CH 4 (g) + 2O 2 (g) ? CO 2 (g) + 2H 2 O (g). 1 mol. 2 mol. 1 mol. 2 mol. Stoichiometry of the reaction. FIXED ratio for each reaction. Can calculate how much other chemicals are required

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Ch 4. Chemical Quantities and Aqueous Reactions

Ch 4. Chemical Quantities and Aqueous Reactions. CH 4 (g) + 2O 2 (g) ? CO 2 (g) + 2H 2 O (g). 1 mol. 2 mol. 1 mol. 2 mol. Stoichiometry of the reaction. FIXED ratio for each reaction. Can calculate how much other chemicals are required

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Stoichiometry

Stoichiometry. What is stoichiometry?. Chemists are constantly faced with the question, "How much?" How much of an element is present in a compound? How much of each element or compound is required to produce a new compound?

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PRODUCTS

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By: Ashlee Katie & Jaselyn

By: Ashlee Katie & Jaselyn. Chapter 4 Stoichiometry. Final Jeopardy. 100 Stoichiometry. 200 Stoichiometry. What is percent yield? How is it calculated?. 300 Stoichiometry. What mass of water is produced when 39 grams of benzene is burned?. 400 Stoichiometry.

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Limiting Reagents

Limiting Reagents. Limiting Reagent -- the reactant used up first in the chemical reaction. Excess Reagent(s) -- the reactant(s) present in quantities greater than necessary to react with the quantity of the limiting reagent. Limiting Reagent.

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THE HABER PROCESS

THE HABER PROCESS. Chemical production of ammonia. The Reaction. N 2(g) + 3H 2(g) 2NH 3(g) + 92 KJmol -1. The Reactants. NITROGEN From the air by fractional distillation, then cooled & compressed (air is approx. 80% nitrogen) HYDROGEN From methane gas reacted with steam

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Chap 12

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Chemistry 16.3

Chemistry 16.3. Section 12.3-1. Stoichiometry Calculations: Limiting Reagent. Limiting Reagent. 12.3-1.

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Excess and Limiting Reagents !!

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Hardware Models: Limiting Reagents and Theoretical Yields

Hardware Models: Limiting Reagents and Theoretical Yields. Lab 4. Outline. Reactions in Chemistry Moles Limiting Reagents Theoretical Yield Using Analytical Balances Points of Interest Next Assignment. Reactions in Chemistry. Reactions are complex

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Limiting Reagent

Limiting Reagent. The limiting reagent is the reactant you run out of first. The excess reagent is the one you have left over. The limiting reagent determines how much product you can make. How do you find out?. Do two stoichiometry problems.

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What mass of excess reagent remains after the experiment is complete?

At high temperatures, sulfur combines with iron to form the brown-black iron (II) sulfide: Fe (s) + S (l) ? FeS (s) In one experiment, 7.62 g of Fe are allowed to react with 8.67 g of S. What is the limiting reagent, and what is the reactant in excess? Calculate the mass of FeS formed.

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Limiting Reagent

Limiting Reagent. Chemistry Mrs. Coyle. http://www.kitmondo.com/images%5Clisting%5CDe%20Dietrich%20GL-750%20Glass-Lined%20Jacketed%20Reactor-%20MT-1%20(Pic1).JPG. What happens in a chemical reaction, if there is an insufficient amount of one reactant?.

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Limiting and Excess Reagents

Limiting and Excess Reagents. In a chemical reaction an insufficient quantity of any of the reactants will limit the amount of product that forms. A limiting reagent determines the amount of product that can be formed by a reaction.

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12.3 Limiting Reagent and Percent Yield

12.3 Limiting Reagent and Percent Yield. By: Michelle Alice Ganian. Limiting Reagent. In a chemical reaction, an insufficient quantity of any of the reactants will limit the amount of product that is formed.

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Limiting Reagents Excess Reagents Percent yield

Limiting Reagents Excess Reagents Percent yield. Limiting Reagents. The limiting reagent is the reactant that runs out first Limits the amount of product that can be formed Take both reactants to the same product The answer is always the smallest amount of product. Example.

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Reaction chemistry

Reaction chemistry. The car was powered by the basic baking soda and vinegar reacion : [CH 3 COOH (aq) +H 2 O(l) ] + NaHCO 3 (s) ? 2H 2 O(l) + CO 2 (g) +NaCH 3 COO(aq) (120ml vinegar)(5ml acetic acid/100ml vinegar)(1.05g/cm 3 ) = 6.3g/(84g/mol) = 0.105 moles acetic acid

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Limiting Reagent

Limiting Reagent. 1. Limits or determines the amount of product that can be formed 2. The reagent that is not used up is therefore the excess reagent

272 views • 5 slides