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Question 3 15 pts What is the correct cell voltage for the following electrochemical cell reaction?...
Calculate the cell potential for the following reaction that takes place in an electrochemical cell at 25°C. Sn(s) Sn2+(aq, 1.8 M) II Ag+(aq, 0.55 M)1 Ag(s) Sn2+ (aq) + 2 e Ag+ (aq) + e- Sn(s) Ag(s) E = -0.14 V E = 0.80 V -0.84 V +0.86 V 0 -0.93 V +1.12 V O 0.92 V
Given: C+++ (aq) +3e" = Cr(s);E°=-0.74V Ag+ (aq) +e Ag(s); E° = 0.80 V What is the cell potential at 25°C for the following cell? Cr(s) | Cr3+(0.010 M) || Ag+(0.00025 M) | Ag(s) a) 1.71 V b) 1.51 V O c) 0.95 V d) 2.09 V e) 1.37 V
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Question 3 O pts For up to 2 bonus marks: The following reaction occurred in a sealed vessel: Cr(s) + 3 Ag+ (aq) <--> Cr3+ (aq) + 3 Ag(s). Write the equilibrium-constant expression with an explanation. B I VA - A - I E x HTML Editora x E CONV 1 V T 12pt
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An electrochemical reaction occurring in a galvanic cell is expressed using the standard cell notation: Zn(s) Zn2+ (aq) || Ag (aq) | Ag(s) The standard reduction potentials for the half-cell reactions are as follows: Zn2+(aq) + 2e_? Zn(s) E o=-0.76 V Ag (a)eAg(s) E +0.80 V Which of the following statements is correct regarding this electrochemical cell? A. Agt is reduced at the cathode; Zn is oxidized at the anode. B. Edell = +1.56 V...
Consider the following electrochemical cell. Ag(s) | Ag+(aq) || Cr3+(aq) | Cr(s) Determine the overall reaction and its standard cell potential (in V) at 25°C for this reaction. (Include states-of-matter under the given conditions in your answer. Use the lowest possible whole number coefficients.) Overall reaction (please provide)= standard cell potential V= Is the reaction spontaneous at standard conditions?
What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the Age concentration is 1.28 M and the Zn2+ concentration is 6.17x10+M? 2 Ag+ (aq) + Zn(s)—+2Ag(s) + Zn2+(aq) Answer: V The cell reaction as written above is spontaneous for the concentrations given true false Submit Answer Retry Entire Group 9 more group attempts remaining What is the calculated value of the cell potential at 298K for an electrochemical cell...
1. Consider the reaction below: 3Ag2S(s) + 8H+(aq) + 2NO3-(aq) ? 6Ag+(aq) + 3S(s) + 2NO(g) + 4H2O(l) In this reaction, which species is reduced? 2. Calculate Ecell for the following electrochemical cell which is operating under nonstandard conditions: Cr | Cr3+(0.010 M) || Ag+(0.00010 M) | Ag The relevant standard reduction potentials are: Cr3+(aq) + 3e- ? Cr(s) Eº = ?0.74 V Ag+(aq) + e- ? Ag(s) Eº = +0.80 V
What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the Ag concentration is 2.68x10-4 M and the Art concentration is 1.06 M ? 3Ag" (aq) + Al(s) +3Ag(s) + Ap+(aq) Answer: V The cell reaction as written above is spontaneous for the concentrations given: Submit Answer Retry Entire Group 4 more group attempts remaining What is the calculated value of the cell potential at 298K for an electrochemical cell...
When the Ag* concentration is 1.41 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 1.626V. What is the Cr3+ concentration? 3Agt(aq) + Cr(s)—>3Ag(s) + Cr3+(aq) Answer: M
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Question 8 (1 point) The standard potential of the cell Ni(s) Ni2+(aq) || Cl(aq) AgCl(s) Ag(s) is +0.45 V at 25°C. If the standard reduction potential of the AgCl|Ag|Ci couple is +0.22 V, calculate the standard reduction potential of the Ni2+INi couple. -0.45 V +0.23 V -0.67 v +0.67 v 0 -0.23 V Question 6 (1 point) The standard reduction potential of the Br2/Brand Sna/Sn couples are +1.07 and -0.14...