CHM116 week 13 disc probs

CHM116 week 13 disc probs - g ) + 4 H 2 O ( l ) + 3 Cu 2+ (...

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1. Problems for Tues 11/23 Name 2. Sketch a voltaic cell set-up for the following redox reaction: 2 Ag + ( aq ) + Pb (s) 2 Ag ( s ) + Pb 2+ ( aq ) Label the anode and the cathode and write a balanced ½-reaction for each. Indicate the direction of e - flow. Use a table of standard reduction potentials to calculate the overall cell potential. Based on your result, will this cell indeed be spontaneous and produce current? Balance the following redox reaction as though it occurs in acidic aqueous solution: S 2 O 3 2- ( aq ) + Cl 2 ( g ) SO 4 2- ( aq ) + Cl - ( aq ) Balance the following redox reaction as though it occurs in basic solution: Ag ( s ) + CN - ( aq ) + O 2 ( g ) Ag(CN) 2 - ( aq ) 3.
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5. Sketch a voltaic cell set-up for the following redox reaction (you may need to use inert Pt electrodes): 2 NO 3 - ( aq ) + 8 H + ( aq ) + 3 Cu ( s ) 2 NO (
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Unformatted text preview: g ) + 4 H 2 O ( l ) + 3 Cu 2+ ( aq ) Label the anode and the cathode and write a balanced -reaction for each. Indicate the direction of e-flow. Use a table of standard reduction potentials to calculate the overall cell potential. Based on your result, will this cell indeed be spontaneous and produce current? 4. For each of the following pairs, determine whether transfer of e-will occur (will a spontaneous redox reaction occur)? Youll want to use data from a table like 18.1 to get standard reduction potentials for reactions that involve each of the species. Do the cell potentials sum up to yield a positive cell potential (thus spontaneous)? a) Ca 2+ ( aq ) and Zn ( s ) b) Ag + ( aq ) and Ni ( s ) c) Mn 2+ ( aq ) and Fe ( s ) d) Pb 2+ ( aq ) and Al ( s )...
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This note was uploaded on 05/15/2011 for the course CHM 116 taught by Professor Matchett during the Fall '11 term at Grand Valley State University.

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CHM116 week 13 disc probs - g ) + 4 H 2 O ( l ) + 3 Cu 2+ (...

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