CHEM 001 Lecture Notes - Lecture 11: Galvanic Cell, Membrane Potential, Miscibility
15 Aug 2020
School
Department
Course
Professor
Document Summary
H2 gas bubbles off platinum (catalyst) plate = h+ ions produced. Platinum (pt) plate carries electrons through wire to silver (ag) strip. Ag+ accepts electron, converts it to solid silver, and allows a cl- to solvate in the solution. The oxidation potential of any electrode used in conjunction with she= reduction potential of the half reaction occurring at the other electrode. Thus: some half reaction reduction potentials can be measured using. D. note: no salt bridge in the above cell. Both electrodes are in contact with the same solution salt bridge not necessary. Required when a cell contains: two different solutions. Ions can move across the liquid junction; thus creates an additional potential difference that affects the potential of the galvanic cell. A type of l iquid junction used to minimize the potential difference in a she galvanic cell. Allows ionic conduction between solutions without creating extra potential within the galvanic cell.
