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The reduction of Cu2+ to Cu(s ) can be written as
Cu2+(aq) + 2e- ----> Cu(s)
A. The cell potential of the cell at 25 degree Celsius at different condition is given by Nernst equation
E = Eo- (0.0591/2)* log(1/[Cu2+])
= 0.34 - (0.0591/2)*log(1/3.6*10^-4) = 0.238 V
The cell potential of the cell at 25 degree Celsius with Cu2+ concentration of 3.6*10^-4 is 0.238 V
B. The cell potential of the cell at 25 degree Celsius at different condition is given by Nernst equation
E = Eo- (0.0591/2)* log(1/[Cu2+])
0.136 = 0.34 - (0.0591/2)*log(1/[Cu2+])
The concentration of the solution of unknown [Cu2+] = 1.25*10^-7 M
C. The cell potential of the cell at 25 degree Celsius at different condition is given by Nernst equation
E = Eo - (0.0591/2)* log(1/[Cu2+])
E = Eo + (0.0591/2)* log([Cu2+])
The above equation is equation of straight line(y = mx+c)
with slope = 0.0591/2 and intercept = E0
Please show all work step by step and final answer. Electrochemical Measurement of Concentration An electrochemical...
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Electrochemical Measurement of Concentration An electrochemical cell consists of a standard hydrogen electrode and a copper metal electrode. What is the potential of this cell at 25°C if the copper electrode is placed in a solution in which [Cu2+] = 3.2x10-6 M? 1 pts Submit Answer Tries 0/5 The copper electrode of the above cell is placed in a solution of unknown [Cu2+]. The measured potential at 25°C is 0.038...
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Electrochemical Measurement of Concentration An electrochemical cell consists of a standard hydrogen electrode and a copper metal electrode. What is the potential of this cell at 25°C if the copper electrode is placed in a solution in which [Cu2+] = 1.9x10-9 M? 1pts Submit Answer Tries 0/5 The copper electrode of the above cell is placed in a solution of unknown [Cu2+]. The measured potential at...
Electrochemical Measurement of Concentration An electrochemical cell consists of a standard hydrogen electrode and a copper metal electrode. What is the potential of this cell at 25°C if the copper electrode is placed in a solution in which [Cu2+] = 9.2×10-5 M? 1 pts Tries 0/8 The copper electrode of the above cell is placed in a solution of unknown [Cu2+]. The measured potential at 25°C is 0.160 V. What is [Cu2+] (in mol/L)? (Assume Cu2+ is reduced.) 1 pts...
Electrochemical Measurement of Concentration An electrochemical cell consists of a standard hydrogen electrode and a copper metal electrode. a) What is the potential of this cell at 25°C if the copper electrode is placed in a solution in which [Cu2+] = 7.5×10-8 M? b) The copper electrode of the above cell is placed in a solution of unknown [Cu2+]. The measured potential at 25°C is 0.109 V. What is [Cu2+] (in mol/L)? (Assume Cu2+ is reduced.) c) A calibration curve...
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Reference Electrodes The Eº value for the following reaction is 0.446 V relative to the standard hydrogen electrode (SHE): Ag2 CrO4(s) + 24 + 2Ag(s) + Cro42 (aq) A chemist wishes to determine the concentration of Cro42- electrochemically. A cell is constructed consisting of a saturated calomel electrode (SCE; which has a reduction potential of 0.242 V relative to the SHE) and a silver wire coated with Ag Cro4 and...
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Nernst Equation Applied to Half-Reactions The Nernst equation can be applied to half-reactions. Calculate the reduction potential (at 25°C) of the half-cell Cu/Cu2+ (1.8x10- M). (The half-reaction is Cu2+ + 2e Cu.) 1 pts Submit Answer Tries 0/5 Calculate the reduction potential (at 25°C) of the half-cell Mn04 (2.00x10-1 M) Mn2+ (2.50X10-2 M) at pH = 4.00. (The half-reaction is MnO4 + 8H+ + 5e Mn2+ + 4H20.) 1pts Submit...
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An electrochemical cell consists of a standard hydrogen electrode and a copper metal electrode. a. What is the potential of the cell at 25°C if the copper electrode is placed in a solution in which 9.0 x 10-5 M? Ecell = v b. The copper electrode is placed in a solution of unknown The measured potential at 25°C is 0.177 V. What is ? (Assume Cu2+ is reduced.)
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Using tabulated standard reduction potentials from your text, calculate the standard cell potential, Eºcell (always positive for a galvanic cell), based on the following reaction: Cu2+(aq) + Mg(s) = Mg2+ (aq) + Cu(s) Eºcell = cf Table A5.5, p A24 Zumdahl "Chemical Principles" 8th ed. 1pts Submit Answer Tries 0/5 A galvanic cell based on the above reaction is constructed according to the generic sketch of a galvanic cell shown...
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Spontaneity of RedOx Reactions For all of the following experiments, under standard conditions, which species could be spontaneously produced? A lead wire is placed in a solution containing Cu2+ Pb2+ Cu No reaction Cl2 gas is bubbled into a solution of NaI. 12 CI Na Crystals of I are added to a solution of NaCl Na Cl2 No reaction Tries 0/5 Submit Answer
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Reference Electrodes The Eº value for the following reaction is 0.446 V relative to the standard hydrogen electrode (SHE): AgzCrO4(s) + 2e + 2Ag(s) + Cro 2(aq) A chemist wishes to determine the concentration of Cro42 electrochemically. A cell is constructed consisting of a saturated calomel electrode (SCE; which has a reduction potential of 0.242 V relative to the SHE) and a silver wire...