PPT-Topic 9 Redox processes

Higher level IB CHEMISTRY 91 Oxidation and reduction OBJECTIVES Oxidation and reduction can be considered in terms of oxygen gainhydrogen loss electron transfer or change in oxidation number . Databases treating redox reactions must include either . O. 2. (. aq. ). or . H. 2. (. aq. ). in the list of Basis Species. . This species is the database’s “redox pivot”.. O. 2. (. aq. ) is the . Redox potentials are used to infer the direction and free energy cost of reactions involving electron transfer, one of the most ubiquitous and important types of biochemical reactions. Such reductio Titration. OF bleach . Due Today: . 1. Redox Titration of Bleach Pre-Lab. 2. . Copper Reduction Formal Lab Report. Homework:. 1. Redox . Titration . Short Report. 2. Gravimetric Analysis of Phosphorus Pre-Lab. Definition. If oxidation occurs, then reduction must also occur. Any chemical process in which elements undergo a change in oxidation number is a . Redox reaction. Example. 2Na + Cl. 2. . → 2Na. Lecture 9. Law of Mass Action. Important to remember our equation. describes the . equilibrium. condition. At non-equilibrium conditions it is called the . reaction quotient, Q. .. Written for the reaction H. 14.1 Redox Equations (Review). 14.2 Electrode Potentials and the Electrochemical Series. 14.3 Predicting the Direction of Redox Reactions. 14.4 Uses for Electrochemical Cells. 14.1 Redox Equations. Learning Objectives:. 6. 3-. (. aq. ) + JO. 2. -. (. aq. ) .  J. 2. O. 7. 2-. (. aq. ) + Z. 7. O. 4. 3+. (. aq. ) . 68H. +. (. aq. ) + . 41e. -. +7 . Z. 2. O. 6. 3-. (. aq. ) .  2Z. 7. O. 4. 3+. (. aq. ) + 34. H. 2. Redox. – Reduction and Oxidation. REVISION. OILRIG. Oxidising and Reducing Agents. NEW LEARNING. Writing balanced ion electron equations involving oxygenated group ions.. Balancing . redox. equations.. & Regenerative Fuel Cells. Enabling renewable energy. Vanadium redox flow. Polysulfide/Bromine flow. Uranium (!!!) based. Zinc/Bromide (half redox flow). All liquid regenerative fuel cells. Ongoing Projects here in UIUC . 1.2.3: Redox explains the chemistry behind batteries and electroplating precious metals onto strong base metals. It also explains how to break apart water into hydrogen and oxygen, and lots more.. 4: These 2 reactions are always paired and balanced.. 1675 University Blvd, WEBB 416 & 418. Lab phone:(205) 996-2661. Director: Douglas Moellering, PhD. Research Associates: . Kelley Smith-Johnston, BS: . johnk@uab.edu. Melissa J. Sammy, PhD: . mjsammy@uab.edu. Carbon Cycling. Louis A. Derry. Cornell University. Snapshot of modern/recent data: impact of Himalaya on C cycle. Hundreds of hot springs along Himalayan front, “MCT zone” (Oldham, J . Geol. . Soc. Reactions. 17.2 Galvanic . Cells. 17.3 Standard . Reduction Potentials. 17.4. . Concentration Cells and Nernst Equation. 17.5. . Batteries and Fuel Cells. 17.6. . Corrosion and Corrosion Prevention. 4. Redox Reactions. Oxidation-Reduction (Redox) Reactions. Redox reactions involve an electron transfer.. These reaction occur between metals and nonmetals.. Ionic reactions are redox reactions.. The name.