L26 - Limiting Reactants 2H2(g O2(g 2H2O(g There is not...

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    There is not enough H 2  to react with all the O 2  initially present. Some O 2  is  left over after the completion of the reaction. H 2  is referred to as the  limiting  reactant  or  limiting reagent . O 2  is referred to as the  excess reactant . 2H 2 ( g ) + O 2 ( g  2H 2 O( g ) Limiting Reactants
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    Sample Problem 3.10 Using Molecular Depictions to Solve a Limiting-Reactant  Problem PROBLEM: Nuclear engineers use chlorine trifluoride in the processing of uranium  fuel for power plants.  This extremely reactive substance is formed as a  gas in special metal containers by the reaction of elemental chlorine  and fluorine. PLAN: (a)   Suppose the box shown at left represents a container of the  reactant mixture before the reaction occurs (with chlorine colored  green).  Name the limiting reactant, and draw the container contents  after the reaction is complete. (b)   When the reaction is run again with 0.750 mol of Cl 2  and 3.00 mol of F 2 , what  mass of chlorine trifluoride will be prepared? Write a balanced chemical equation.  Compare the number of molecules  you have to the number needed for the products.  Determine the reactant  that is in excess.  The other reactant is the limiting reactant.
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This note was uploaded on 04/20/2008 for the course CHEM 111 taught by Professor Grzegorz during the Spring '08 term at Colorado State.

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L26 - Limiting Reactants 2H2(g O2(g 2H2O(g There is not...

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