Chemistry - Lab write up (04-18)

Chemistry Lab - Exp Eight Electrochemistry Voltaic Cells Date Name Objectives The two objectives of this experiment were to construct several

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Exp. Eight Electrochemistry: Voltaic Cells Date: 04/17/07 Name: Objectives: The two objectives of this experiment were to construct several voltaic cells and to measure their cell potentials, and to examine the effect of concentration changes and complex ion formation on cell potentials. Pre-Lab: 1) Prepare 100mL of .10M Cu (NO 3 ) 2 from 1.0M Cu (NO 3 ) 2 . M 1 V 1 = M 2 V 2 (1)(V 1 ) = (100)(.1) V 1 = .10mL (+ 100mL volumetric flask) 2) Sn| Sn 2+ (1.0M) || Cu 2+ (1.0M) | Cu E = .48V Cu 2+ + 2e - Cu (s) E = .34 V Sn(s) Sn 2+ + 2e -- E = x E cell = Cathode – Anode .48V = .34V – x X = -.14 3) Ag | Ag + (.001M) || Ag + (0.010M) | Ag; Concentration Cell Ag + + e - Ag (s) Ag(s) Ag + + e - E cell = 0 – (.0592/1) Log (.001/.010) = 0.0592V Procedure: The procedure followed was specified on pages 69-70 of the General Chemistry 112 Laboratory Manual for the Spring Semester 2007. Experimental Data:
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This lab report was uploaded on 04/16/2008 for the course CHEM 111 taught by Professor Hartshorn during the Fall '06 term at St. Thomas.

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Chemistry Lab - Exp Eight Electrochemistry Voltaic Cells Date Name Objectives The two objectives of this experiment were to construct several

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