Calculate the standard potential and state the direction in which the reaction proceeds spontaneously for Strategy Find

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Calculate the standard potential and state the direction in which the reaction proceeds spontaneously for2Cr+(aq) + 2Br (aq)  2Cr+ (aq) + Br(l)

Strategy Find the two half-reactions in Table 18.1, reversing one of them to make it an oxidation process. Combine the E°s for the two half-reactions to determine the voltage of a voltaic cell having the above reaction.

Table 18.1TABLE 18.1 Standard Reduction Potentials at 25 C Reduction half-reaction F(g) + 2e- Ce4+ (aq) + e MnO4 (aq) +

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Chemistry Principles And Practice

ISBN: 9780534420123

3rd Edition

Authors: Daniel L. Reger, Scott R. Goode, David W. Ball

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