Chemistry 9 Monday, October 16, 2006

Chemistry 9 Monday, October 16, 2006 - Monday, October 16,...

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Monday, October 16, 2006 Chemistry REACTIONS BASICS How can quantitative yields be predicted? How do we think about reaction energies? Parts of Appendix D.1 – D.4 Text: Sections 9.0 - 9.1 QUANTITATIVE RELATIONSHIP IN REACTIONS 1. Dalton’s Atomic Theory – Part III a. In a reaction, atoms don’t change, they rearrange CH 4 + 2O 2 CO 2 + 2H 2 O Reactants Products 2. Balanced equations: Same # of atoms left and right a. Info about 2 scales i. Atoms ii. Moles 3. Predicting how much product 2SO 3 2SO 2 + O 2 Start with: Form: SO 3 SO 2 O 2 2 mol 1 mol 2 mol 6 mol 3 mol 6 mol ½ mol ½ mol ¼ mol 4. When anyone reactant runs out, the reactions stops a. Called the “limiting reactant” b. Depends on how much of each you start with CH 4 + 2O 2 CO 2 + 2H 2 O Start with: Form: CH 4 O 2 CO 2 H 2 O 1 mol XS 1 mol 2 mol 3 mol XS 3 mol 6 mol XS 3 mol 1.5 mol 3 mol 3 mol 4 mol lim 2 mol 3 mol 4 mol 10 mol 4 mol 8 mol lim
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Monday, October 16, 2006 ENERGY CHANGES IN REACTIONS 1. Everything has E
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This note was uploaded on 03/20/2008 for the course CH 101 taught by Professor Bigham during the Fall '08 term at N.C. State.

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Chemistry 9 Monday, October 16, 2006 - Monday, October 16,...

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