Aluminum is plated out according to the half-reaction below. What mass of alumin

Question

Aluminum is plated out according to the half-reaction below. What mass of aluminum can be plated onto an object if a current of 5.0 A is passed through an electrolytic cell for 45 minutes? In an electrochemical cell, Q = 2.2 Times 10^3 and K = 7.1 Times 10^1. Based on this information, which of the following statements is TRUE? What substance is being reduced in the following redox reaction? 3Cu(s) + 2 MnO_4^-(aq) + 8 H^+(aq) rightarrow 3Cu^2+ (aq) + 2 MnO_2(s) + 4 H_2(I) Calculate the standard cell potential for the spontaneous reaction between the half cell below at 25 degree C Consider the overall cell reaction below: 3Cu(s) + 2 MnO_4^-(aq) + 8H^+ rightarrow 3Cu^2+ (aq) + 2 MnO_2(s) + 4H_2O(l) Which of the following changes will result in a more NEGATIVE E_cell relative to E degree_cell?

Explanation / Answer

19)option D is correct because we can see that Q>K so the reaction will move backward and so the E nd E* cell will decrease

20) MnO4- is getting reduced as +7 gets reduce to +4

21) can be calculated by calculating delta G

delta G = delta G1 + delta G2

22) option B is the correct one as we can see the equation depends on log K value which is inversely proportional to Ph

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