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Question 15 3 pts Consider a palvanic cell that uses the reaction 2 A* (aq) +...
14. (20 pts total) Consider the following cell reaction at 25 o°C: 2 Al(s)3 Ni (aq)>2 A (aq) +3 Ni(s) Calculate the following: a. (10 pts) Under standard conditions, calculate the Gibbs Free Energy, AG , in J. (Standard reduction potentials are in the last page of the exam) b. (10 pts) At non-standard conditions, if the concentrations of Ni respectively, calculate the E, in V. Assume T 25 °C. and Al are 0.015 M and 0.010 M,
Consider a voltaic cell that uses the reaction$$ 2 \mathrm{Al}(\mathrm{s})+3 \mathrm{Fe}^{2+}(\mathrm{aq}) \rightarrow 2 \mathrm{Al}^{3+}(\mathrm{aq})+3 \mathrm{Fe}(\mathrm{s}) $$What is the potential of the cell at \(25^{\circ} \mathrm{C}\). given the following ion concentrations?$$ \begin{aligned} &{\left[\mathrm{Al}^{3+}\right]=0.10 \mathrm{M}} \\ &{\left[\mathrm{Fe}^{2+}\right]=0.020 \mathrm{M}} \end{aligned} $$ 1.20 V 1.17 V 1.03 V 1.19 V
Consider the following cell reaction at 18°C: Ca(e)+Cu+ (aq) + Ca2+ (aq) + Cu() Calculate the standard cell potential of this cell from the standard electrode potentials, and from this, obtain AG" for the cell reaction. Calculate AF. Use these values of AN and AG to obtain AS for the cell reaction. Ca²+ (aq) +20 + Ca() --2.76 V Cu? (g) +20 + Cu(s) - 0.84 V AH;(O.*()) -- 542.8 kJ/mol AH;(Out (as)) - 64.8 kJ/mol V AG- AH- kJ...
Calculate the cell potential for the galvanic cell in which the reaction Fe(s)+Au3+(aq)−⇀↽− Fe3+(aq)+Au(s) occurs at 25 ∘C , given that [Fe3+]=0.00150 M and [Au3+]=0.795 M . Refer to the table of standard reduction potentials. E= V
5. The overall cell reaction in a galvanic cell is Sn(s) + Cu* (aq)>Sn (aq)+ Cu (s). (a) Draw a diagram of this cell (similar to Figure 2) (b) Use standard reduction potentials (Table 1) to calculate the theoretical cell voltage, el
Consider the balanced redox reaction below. 2Hg(I) + 2 Cu2 + (aq) +2CI-(aq)? Hg2CI2(aq) +2 Cu (s) Standard reduction Potentials are given below. Standard Reduction Potentials Reduction Half Reaction Cu2+ (aq) +2e-? Cu (s) 0.34 27 What is the cell potential, Ecell for the following concentrations at 298 K? Cu2+)-0.02M (CI1-0.3M [Hg2Cl21-0.005M Express your answer in units of Volts. 321
Calculate the cell potential for the galvanic cell in which the given reaction occurs at 25 °C, given that [Sn2+] = 0.0586 M, [Co+] = 0.0487 M, [Sn++] = 0.00784 M, and [Co2+] = 0.01015 M. Standard reduction potentials can be found in this table. Sn2+(aq) + 2 Co+(aq) = Sn(aq) + 2 Co2+ (aq) E= V
Consider a voltaic cell where the anode half-reaction is Zn(s) → Zn2+(aq) + 2 e− and the cathode half-reaction is Sn2+(aq) + 2 e– → Sn(s). What is the concentration of Sn2+ if Zn2+ is 2.5 × 10−3 M and the cell emf is 0.660 V? The standard reduction potentials are given below Zn+2(aq) + 2 e− → Zn(s) E∘red == −0.76 V Sn2+(aq) + 2 e– → Sn(s) E∘red −0.136 V
Calculate the cell potential for the reaction as written at 25.00 °C , given that [Cr2+]=0.835 M and [Sn2+]=0.0160 M . Use the standard reduction potentials in this table. Cr(s)+Sn2+(aq)↽−−⇀ Cr2+(aq)+Sn(s) Cr ( s ) + Sn 2 + ( aq ) ↽ − − ⇀ Cr 2 + ( aq ) + Sn ( s )
Con 14 of 16 > Calculate the cell potential for the galvanic cell in which the given reaction occurs at 25 °C, given that (Sn²+] = 0.0590 M, [Fe3+1 = 0.0451 M, [Sn+1 = 0.00484 M, and [Fe2+] = 0.00958 M. Standard reduction potentials can be found in this table. Sn?+ (aq) + 2 Fe?+ (aq) = Sn**(aq) + 2 Fe²+(aq) V E =