solid chromium is placed in a solution of copper chloride copper metal is plated on the surface of the chromium. identify the half reaction that has a result of oxidation. identify the half reaction that is the result of reduction Cr(s)->Cr+3+3e-

Balance the following redox reaction in acidic solution.

3) Balance the following Oxidation Reduction reaction using either the half reduction method or the oxidation number method.

Using the given reduction potential of the Zn^2+(0.1M)/Zn half reaction which is -0.79V, determine the reduction potentials of all of the other half-reactions. Anode        Cathode Al                Fe                0.509V Zn               Al                  0.564V Zn                Fe                 0.901V

6) Balance the following Oxidation Reduction reaction using either the half reduction method or the oxidation number method.

Consider a cell that uses the redox reaction: Cu2+ (aq) + Zn (s) → Zn2+ (aq) + Cu (s).   The standard reduction potentials for the two half reactions that make up this cell are shown below. A potentiometer is used to measure the potential difference between two half cells. What is the reading on the potentiometer when [Cu2+] = 0.010 M and [Zn2+] = 0.10 M.  Cathode: Cu2+(aq) + 2e- → Cu(s)       E° = 0.34 V Anode:    Zn2+(aq) + 2e- → Zn(s)        E° = -0.76 V     1.10 V     1.04 V     1.07 V     1.13 V

2) Balance the following Oxidation Reduction reaction using either the half reduction method or the oxidation number method.

Relative Reduction Potential Assuming standard conditions, and considering the table of standard reduction potentials for half- reactions, given in your text, rank the following species according to their relative strength as reducing agents. For example, the most powerful reducing agent would be given rank "1", and the least "6". 2 Al 4 Pb 1 Ca 5 l- 6 Au 3 Cr3+ (acidic half-cell solution)

9. The standard reduction for a reaction is 0.150 V. Assuming n=1 what's the equilibrium constant, Keg for this reaction? a) 3.42 x 102 b) 12.6 c) 1.18 x 106