Calculate the emf for a cell operating with the following reaction:Cr2O72-(aq) + 6 I-(aq) + 14 H+(aq) → 2 Cr3+(aq) + 3 I2(s) + 7 H2O(l),where [Cr2O72-] = 0.020 M, [I-] = 0.015 M, [Cr3+] = 0.20 M and [H+] = 0.50 M, using the following standard reduction potentials:Cr2O72-(aq) + 14 H+(aq) + 6 e- → 2 Cr3+(aq) + 7 H2O(l) E° = +1.33 VI2(s) + 2 e- → 2 I-(aq) E° = +0.54 V

MCQS on the chemical principles and theories that are used in a variety of practical applications. Topics include chemical kinetics, solution chemistry, chemical equilibrium, acids, bases, and buffers, electrochemistry, nuclear chemistry, and an introduction to organic chemistry.