What is the standard cell potential E ° , for thisreaction? 3Mn(s) + 2AuCl 4 - (

Question

What is the standard cell potential E°, for thisreaction? 3Mn(s) + 2AuCl4-(aq) 3Mn2+(aq) + 2Au(s) + 8Cl-(aq) Standard ReductionPotentials                E° Mn2+(aq) + 2e- -->Mn(s)                     -1.18V AuCl4-(aq) + 3e- --->Au(s) +4Cl-       +1.00V Please EXPLAIN youranswer. 3Mn(s) + 2AuCl4-(aq) 3Mn2+(aq) + 2Au(s) + 8Cl-(aq) Standard ReductionPotentials                E° Mn2+(aq) + 2e- -->Mn(s)                     -1.18V AuCl4-(aq) + 3e- --->Au(s) +4Cl-       +1.00V Please EXPLAIN youranswer.

Explanation / Answer

3Mn(s) + 2AuCl4-(aq) 3Mn2+(aq) + 2Au(s) + 8Cl-(aq) Given Standard ReductionPotentials                E° Mn2+(aq) + 2e- -->Mn(s)                     -1.18V AuCl4-(aq) + 3e- --->Au(s) +4Cl-       +1.00V standard cell potential E° =E°cathode - E°anode                                        =E°right - E°left                                       = 1.0 - ( - 1.18 )                                       = 2.18 Volts                                       = 1.0 - ( - 1.18 )                                       = 2.18 Volts

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