notes_Lecture_11_102910

notes_Lecture_11_102910 - Lecture 11: Intro to...

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Lecture 11: Intro to Electrochemistry Announcements – HW#4 Posted (Due Wed. Nov. 3 @ 11:00 PM) – Exams graded and scores posted Reading: Zumdahl 11.1 (Review Outline (Redox Review) – Redox reactions (4.10) – Galvanic cells (11.1) – Balancing redox (4.11) – 4.55, 4.59, 4.61, 4.63
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Exam 1 Scores 0 5 10 15 20 25 30 35 40 45 50 10 20 30 40 50 60 70 80 90 100 Mean 57.5 Median 57.5 Mode 57 Min 0 Max 98 Std. Dev. 18.4
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Nomenclature • “Redox” Chemistry: Reduction and Oxidation • Oxidation: Loss of electrons • Reduction: Gain of electrons (a reduction in oxidation number) OIL RIG O xidation I s L oss of electrons R eduction I s G ain of electrons
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Oxidation Numbers An “accounting” of the electrons in a chemical species. This helps us keep track of what is oxidized (loses electrons) and what is reduced (gains electrons). Oxidation number represents the number of electrons required to produce the charge on a species. The oxidation number.
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notes_Lecture_11_102910 - Lecture 11: Intro to...

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