Chemistry_1031_day13_021809_actual

Chemistry_1031_day13_021809_actual - General Chemistry I...

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General Chemistry I CHE-1031 Dr. Jonathan M. Smith Wednesday, February 18
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Today Last details Overview In class exam Friday, Feb. 20 Review 5:00 Thursday, location: tba
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Coffee…. Pepsi… Coke… Dew…
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Chemical Equations Chapter 4
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5 Limiting Reactant for reactions with multiple reactants, it is likely that one of the reactants will be completely used before the others when this reactant is used up, the reaction stops and no more product is made the reactant that limits the amount of product is called the limiting reactant sometimes called the limiting reagent the limiting reactant gets completely consumed reactants not completely consumed are called excess reactants the amount of product that can be made from the limiting reactant is called the theoretical yield
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6 Things Don’t Always Go as Planned! many things can happen during the course of an experiment that cause the loss of product the amount of product that is made in a reaction is called the actual yield generally less than the theoretical yield, never more! % 100 yield l theoretica yield actual Yield Percent × =
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Practice – How many grams of N 2 ( g ) can be made from 9.05 g of NH 3 reacting with 45.2 g of CuO? 2 NH 3 ( g ) + 3 CuO( s ) N 2 ( g ) + 3 Cu( s ) + 3 H 2 O( l ) units are correct, and since there are fewer moles of N 2 than CuO in the reaction and N 2 has a smaller mass, the number makes
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This note was uploaded on 05/09/2010 for the course CHEM 1031 taught by Professor Thomas during the Spring '06 term at Temple.

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Chemistry_1031_day13_021809_actual - General Chemistry I...

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