'Ce 4' diaporamas de présentation

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? 7 ? ???????. ? Oxidation-reduction titration). 7.1 ???????????? 7.2 ???????????? 7.3 ??????????????? 7.4 ?? ?????????? 7.5 ???????????????. ????. 7.1 ??????. 1 ? ?. ??????? ?? ????????????? ????? ?????????????? ?????? ? ?????.

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Announcements

Announcements. Course Evaluations Final is Wednesday Afternoon on May 9 th Homework 14-15, 14-26, 15-6, 16-3 , 16-6,. Course Evaluations. Request from Thelmo

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Stabilizing several anions (F, O, OH, S) in the vicinity of transition metals or rare earths

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Chapter 14

Chapter 14. Electrode Potentials. 14-1 Redox Chemistry & Electricity. Oxidation: a loss of electrons to an oxidizing agent Reduction: a gain of electrons from a reducing agent Red uction- Ox idation reaction (redox reaction) ex: Half-reactions: re: Fe 3+ + e - ? Fe 2+

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Reduction- Oxidation Reactions 5th lecture

Reduction- Oxidation Reactions 5th lecture. Ceric as titrant: Ce 4+. Ceric as titrant: Ce 4+. Properties. Ce 4+ salts are strong oxidants in H 2 SO 4 Ce 4+ + e ? Ce 3+ Yellow Colorless .

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Potentiometric Methods

Potentiometric Methods. A.) Introduction : 1.) Potentiometric Methods: based on measurements of the potential of electrochemical cells in the absence of appreciable currents (I ?0 ) 2.) Basic Components: a) reference electrode: gives reference for potential measurement

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Catastrophic Events

Catastrophic Events. 20010-2011 Mr. Johnson, Science. CE 1. What is an example of a catastrophic event? When and where do they occur? How are humans affected by these events?. CE 2.

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Ch 16: Redox Titrations

Ch 16: Redox Titrations. Redox titrations are essential in measuring the chemical composition of a superconductor (YBa 2 Cu 3 O 7 - 2/3 Cu 2+ and 1/3 the unusual Cu 3+ ). KMnO 4 Titrations. 8H + + MnO 4 - +5e - = Mn 2+ + 4H 2 O E o = +1.51V

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Ch 16: Redox Titrations

Ch 16: Redox Titrations. Redox titrations are essential in measuring the chemical composition of a superconductor (YBa 2 Cu 3 O 7 - 2/3 Cu 2+ and 1/3 the unusual Cu 3+ ). KMnO 4 Titrations. 8H + + MnO 4 - +5e - = Mn 2+ + 4H 2 O E o = +1.51V

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Oscillation Lab Discussion

Oscillation Lab Discussion. Amber Color. Path A Part I:. BrO 3 -1 + 5Br -1 + 6H +1 ? 3 Br 2 + 3 H 2 O then: Br 2 + CH 2 (CO 2 H) 2 ? BrCH(CO 2 H) 2 + Br -1 + H +1. Colorless. Path A Part II:. From Path A end:. From Path B end:.

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Calculating the Cell Potential

Calculating the Cell Potential The process of calculating the cell potential is simple and involves calculation of the potential of each electrode separately, then the overall cell potential can be determined from the simple equation: E cell = E cathode - E anode

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Calculating the Cell Potential

Calculating the Cell Potential The process of calculating the cell potential is simple and involves calculation of the potential of each electrode separately, then the overall cell potential can be determined from the simple equation: E cell = E cathode - E anode

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Example

Example Find the potential of a 50 mL solution of a 0.10 M Fe 2+ after addition of 0, 25, 40, 50, and 75 mL of 0.1 M Ce 4+ . Fe 3+ + e D Fe 2+ E o = 0.771 V Ce 4+ + e D Ce 3+ E o = 1.70 V Solution 1. After addition of 0 mL Ce 4+

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C U R R E N T E V E N T S

C U R R E N T E V E N T S. ROUND 10. CE #1. The world's last male northern white rhino has died leaving only two females left to save the species from extinction . Sudan lived in Kenya, surrounded by armed guards to protect him from poachers.

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CHAPTER 5: QUADRILATERALS

CHAPTER 5: QUADRILATERALS. 5-2: WAYS TO PROVE QUADRILATERALS ARE PARALLELGORAMS. PARALLELOGRAMS. Remember that a parallelogram, by definition, is a quadrilateral with both pairs of opposite sides parallel.

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Redox Titrimetry and Potentiometry

Redox Titrimetry and Potentiometry. Redox Titrations. Titrate 50.0mL of 0.050 M Fe 2+ vs 0.100M Ce 4+ How do we observe the end point? Is the equilibrium constant large enough? To Observe End Point:. Redox Titrations Titrate 50.0 mL 0.050 M Fe 2+ vs 0.100 M Ce 4+.

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Surgeon General Brief 11 May 2004

Fleet Hospital Program for Logistics. REV 10. 34. Surgeon General Brief 11 May 2004. Dedicated to Saving Lives. FHSO Organization. STAFFING Civil Service 38 Contractor 19 Military 25 Officers Supply Corps 5 Medical Service Corps 3 Civil Engineer Corps 2

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