week 11 - 6.4 Limiting Reactants When two reactants are...

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6.4 Limiting Reactants When two reactants are mixed, one usually does not react completely because there is too much of it. The limiting reactant is the reactant that reacts completely and is therefore not present when the reaction is complete. Since the limiting reactant reacts completely, its amount determines the amount of product that can form. 2H 2 (g) + O 2 (g) 2H 2 O(g) Q> When 2.0 moles of H 2 reacts with 2.0 moles of O 2 , how many moles of H 2 O will be produced? Limiting Reactants – Mole Scale N 2 ( g ) + 3H 2 ( g ) ! 2NH 3 ( g ) Q1> Identify the limiting reactant when the following are mixed: 1. 2.0 mol N 2 and 5.0 mole H 2 2. 3.10 mole N 2 and 10.2 mol H 2 Q2> How many moles of NH 3 can be produced in each case?
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Q> The balanced equation for the reaction of phosphorus and oxygen gas to form diphosphorus pentoxide is: P 4 ( s ) + 5O 2 ( g ) ! 2P 2 O 5 ( s ) What is the limiting reactant when each of the following sets of quantities of reactants is mixed? 1.
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This note was uploaded on 02/26/2012 for the course CHEM 111 taught by Professor Cao during the Fall '07 term at Purdue University-West Lafayette.

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week 11 - 6.4 Limiting Reactants When two reactants are...

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