AP Chemistry Electrochemistry WS 0809

AP Chemistry Electrochemistry WS 0809 - AP Chemistry...

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AP Chemistry: Electrochemistry AP Chemistry Electrochemistry WS 0809.doc Name: ___________________________________ Date: _______________________ Per: _____ 1. Zinc metal reacts with nitric acid, HNO 3 , to produce a number of products, depending on how dilute the acid solution is. In a concentrated solution, zinc reduces nitrate ion to ammonium ion; zinc is oxidized to zinc ion, Zn 2+ . Write the net ionic equation for this reaction. 2. Permanganate ion oxidizes sulfite ion in basic solution according to the following equation: MnO 4 - (aq) + SO 3 2- (aq) MnO 2(S) + SO 4 2- (aq) Use the half-reaction method to complete and balance this equation. 3. A voltaic cell is constructed from a half-cell in which a cadmium rod dips into a solution of cadmium nitrate, Cd(NO 3 ) 2 , and another half-cell in which a silver rod dips into a solution of silver nitrate, AgNO 3 . The two half-cells are connected by a salt bridge. Silver ions are reduced during the operation of the voltaic cell. Draw a sketch of the cell. Label the anode and cathode, showing the corresponding half-
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This note was uploaded on 12/07/2011 for the course CHEM 100 taught by Professor Feebeck during the Fall '10 term at Purdue.

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AP Chemistry Electrochemistry WS 0809 - AP Chemistry...

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