103Stoichiometry

103Stoichiometry - Help sessions Thursdays and Fridays...

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Lesson 3 1 Help sessions • Thursdays and Fridays • 11:30-12:20 pm • RCH 209 • Note: I have now moved office and am in E6- 4008. • Office hour: M 1:30-2:30 • Other times: drop in, or e-mail first if you want to guarantee I’m in. Lesson 3 Lesson 3 The chemical equation Chemical equations describe changes that occur in chemical reactions: N 2 O 5 NO 2 + O 2 Chemical equations must be balanced, i.e. the number of atoms on the reactant side should be equal to the number of atoms on the product side (atom conservation principle): 2 N 2 O 5 4 NO 2 + O 2 N 2 O 5 2 NO 2 + ½ O 2 etc The stoichiometric chemical equation describes only the net changes taking place in a reaction. It does not correspond necessarily to what takes place at a molecular level. Lesson 3 Space filling model for the reaction between NO and O 2 Petrucci et al.
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Lesson 3 2 Lesson 3 Mechanism equation Mechanism equations describe the steps required to go from reactants to products at
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This note was uploaded on 11/29/2011 for the course CHE 102 taught by Professor Simon during the Fall '08 term at Waterloo.

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103Stoichiometry - Help sessions Thursdays and Fridays...

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