Consider this reaction. Sn^2+(aq) + 2Fe^3+(aq) rightarrow Sn^2+(aq) + 2Fe^3+ E c
ID: 527259 • Letter: C
Question
Consider this reaction. Sn^2+(aq) + 2Fe^3+(aq) rightarrow Sn^2+(aq) + 2Fe^3+ E composite - 0.617 V What is the value of E when [Sn^2+] and [Fe^3+] are equal to 0.50 M and [Sn^2+] and [Fe^3+] arte equal to 0.10 M? 0.069 V 0.579 V 0.458 V What mass of platinum could be placed on an electrode from the electrolysis of Ph(HO_3)_2 solutions with a current of 0.500 A for 55.0s? 27.8 mg 45.5 mg 53.6 mg 91.0 mg Which combination of reactants will produce the greatest voltage based on these standard electrode potentials? Cu^+ and Sn^2+ Cu^+ and Cr^2+ Cu and Sn^2+ Sn^2+ and Cr^2+ Cu^+(aq) + e^- rightarrow Cu() +0.52 V Sn^2(aq) + 2e^- rightarrow Sn^2+(aq) +0.15 V Cr^2+(aq) + e^- rightarrow Cr^2+(aq) -0.41 V Two metals are represented by the symbols Land Z. Which is the best oxidizing agent listed? L L^2+ Z Z^+ L^2+(aq) + 2e^+ rightarrow L() +0.76 V Z^+(aq) + e^- rightarrow Z() +0.30 VA current of 5,00 A is passed through an aqueous solution of chromium(III) nitrate for 30.0 min. How many grams of chromium metal will be deposited at the cathode? 0027 g 1.62 g 4.85 g 6.33 g Which statement about this redox reaction is correct? 2MnO_4^-(aq) + 5H_2O(aq) + 6H^+(aq) rightarrow 2Mn^2+(aq) + 5O_2(g) + 8H_2O(g) O_2acts as the oxidant in this reaction. H_2O, acts as a reducing agent. H_2O, acts as an oxidizing agent. Only oxidation has taken place.Explanation / Answer
7.E=Eo-(0.0591/n)*logK
=0.617-(0.0591/2)*log([0.10^2*0.10]/[0.50^2*0.50])
= 0.679V
Therefore option (B) is correct