Access over 35 million academic & study documents

Design Management Class Notes_196161663-Electrochemistry-class-12-notes

Content type
User Generated
Showing Page:

Sign up to view the full document!

lock_open Sign Up
Showing Page:

Sign up to view the full document!

lock_open Sign Up
Showing Page:

Sign up to view the full document!

lock_open Sign Up
End of Preview - Want to read all 53 pages?
Access Now
Unformatted Attachment Preview
Electrochemistry Applications of Redox Review  Oxidation reduction reactions involve a transfer of electrons.  OIL- RIG  Oxidation Involves Loss  Reduction Involves Gain  LEO-GER  Lose Electrons Oxidation  Gain Electrons Reduction Solid lead(II) sulfide reacts with oxygen in the air at high temperatures to form lead(II) oxide and sulfur dioxide. Which substance is a reductant (reducing agent) and which is an oxidant (oxidizing agent)? A. PbS, reductant; O2, oxidant B. PbS, reductant; SO2, oxidant C. Pb2+, reductant; S2- oxidant D. PbS, reductant; no oxidant E. PbS, oxidant; SO2, reductant Applications  Moving electrons is electric current.  8H++MnO4-+ 5Fe+2 +5e Mn+2 + 5Fe+3 +4H2O  Helps to break the reactions into half reactions.  8H++MnO4-+5e-  Mn+2 +4H2O  5(Fe+2  Fe+3 + e- )  In the same mixture it happens without doing useful work, but if separate  Connected this way the reaction starts  Stops immediately because charge builds up. H+ MnO4- Fe+2 Galvanic Cell Salt Bridge allows current to flow H+ MnO4- Fe+2  Electricity travels in a complete circuit H+ MnO4- eFe+2 Instead of a salt bridge H+ MnO4- Porous Disk Fe+2 e- e- e- e- Anode e- Reducing Agent Cathode e- Oxidizing Agent Cell Potential  Oxidizing agent pulls the electron.  Reducing agent pushes the electron.  The push or pull (“driving force”) is called the cell potential Ecell  Also called the electromot ...
Purchase document to see full attachment
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

Great! Studypool always delivers quality work.


Similar Documents