PPT-5. Electrochemistry: terms to know

active electrode alkaline battery anode battery cathode cathodic protecdtion cell notation cell potential circuit concentration cell corrosion current dry cell electrical potential electrical work. Chapter 20 . Electrolysis. Electrolysis. is the use of electricity to bring about a chemical reaction..  . Redox. reactions occur at the electrodes..  . At . the . cathode(-). a . reduction. reaction occurs (gain . Corrosion. The iron in steel corrodes easily to form iron (II) oxide. Sodium metal reacts quickly to form sodium oxide. The copper roof of the parliament building corrodes to form copper carbonate. Tarnished silverware forms silver sulfide. Announcements. Return Q2 and HW1.2. I thought Q2 was reasonable – scores were o.k., but not great. Some parts of homework (e.g. I wanted you to use Excel to solve 1.2.3 and to calculate . Sx. – the standard uncertainty in the conc. – for each sample) were not clear so will make 2 points bonus (out of 6 points). Announcements. Exam 1 coming up (Mar. 7. th. ). Friday’s Seminar – Gallo Winery (Internship opportunity). Today’s Lecture - Electrochemistry. Redox Reactions. Fundamental Equations (relating moles of electrons to charge and . Electrochemistry. Cell Potential: Output of a Voltaic Cell. Free Energy and Electrical Work. Cell EMF. Standard Reduction Potentials. The larger the difference between . E. . red. values, the larger . Today…. Turn in:. Nothing. Our Plan:. Test Results. Notes – Redox Equations. Worksheet #1. Homework (Write in Planner):. Redox Equation WS due Friday. 6% Curve. A. 2. B. 5. C. 4. D. 1. F. 4. Average. Announcements I. Homework Set 1.3 Solutions Posted (no problems will be collected). Exam 1. Mar. . . 7. th. Will review topics on Thursday. Will cover all electronics topics and electrochemistry (Ch. 13 most or all of Ch. 14). Conversion of chemical energy and electrical energy. All involve . redox. reactions. Electrochemical Cell: any device that converts chemical energy into electrical energy or electrical energy to chemical energy. Allusion. ALLUSION: A casual reference in literature to a person, place, event, or another passage of literature, often without explicit identification. Allusions can originate in mythology, biblical references, historical events, legends, geography, or earlier literary works. Authors often use allusion to establish a tone, create an implied association, contrast two objects or people, make an unusual juxtaposition of references, or bring the reader into a world of experience outside the limitations of the story itself. Authors assume that the readers will recognize the original sources and relate their meaning to the new context. . Alessandro Volta Michael Faraday Walther . Nerst. Electrochemistry. Using electrical potentials and currents as a way to affect chemistry. Using chemistry to generate electrical potentials and currents. E-mail: . benzene4president@gmail.com. Web-site: http://clas.sa.ucsb.edu/staff/terri/. Electrochemistry . – ch 11. 1. Consider the following reaction: . a. What substance is getting reduced?. b. How many moles of electrons are transferred?. Chapter . 14. Other interfaces. Most . f. igures. from . the. . textbook. . we. . use. for . the. . course. , via . its. web . resources. :. Interface. Large . capacitance. Nonfaradaic. . currents. Al Dente - To cook pasta until it has a slight resistance to the bite . “. firm to the tooth. ”. .. Baste - To moisten meat with a liquid, such as melted butter or a sauce, while cooking. . Batter - A mixture of flour & liquid, thin enough to pour & coat food.. 238 Chapter 7