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Unformatted text preview: 4. An acidified solution of sodium iodate ( ) with an iodate concentration of 0.04mol/L and a pH of 4 is prepared. This solution is used to operate an electrochemical cell, the other half-cell being the standard hydrogen electrode. The two half-cells share a common solution; the separation of reactants is achieved by simply bubbling the hydrogen gas at a pressure of 1atm over one electrode and not the other. A brown colour appears at the iodate electrode, indicating the formation of molecular iodine. 1. Balance the reaction. 2. After a few seconds, a spectroscopic measurement of the iodine concentration is made. It is found that the iodine concentration is . If the cell generates a voltage of 1.090V at that time and the operating temperature is 298K, what is the standard reduction potential corresponding to the iodate half-reaction? Marc Roussel Sun Dec 1 12:17:01 MST 1996...
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This note was uploaded on 03/03/2012 for the course CHEM 2000 taught by Professor Roussel during the Fall '06 term at Lethbridge College.
- Fall '06