The redox reaction of peroxydisulfate with iodide has been used for many years as part of...
The redox reaction of peroxydisulfate with iodide has been used for many years as part of the iodine clock reaction which introduces students to kinetics. If E° cell = 1.587 V and E° iodine = 0.536 V, what is E° peroxydisulfate
S2O82-(aq) + 2H+ + 2I-(aq) → 2HSO4-(aq) + I2(aq)
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-1.051 V |
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-2.123 V |
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1.051 V |
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2.123 V |
Homework Answers
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The redox reaction of peroxydisulfate with iodide has been used
for many years as part of...
which one of the following is the balanced chemical equation for the reaction of iodide with...
which one of the following is the balanced chemical equation for the reaction of iodide with peroxydisulfate and what type of reaction is this? a) I2+2S2O32--->2I-+ S4O62- b) 2I-+S4O62--->I2 + 2S2O32- c) S2O82-+2I- --> I2 +SO42- d) I2- +2SO42---> 2S2O82- + 2I- e) 2I- + 2SO42- --> I2+ 2S2O82- acid base redox neutralization precipitation metathesis
Answer the questions given the following reaction and cell potentials. 3 I2(s) + 2 Fe(s) →...
Answer the questions given the following reaction and cell potentials. 3 I2(s) + 2 Fe(s) → 2 Fe3+(aq) + 6 I⁻(aq) E°iron = -0.036 V and E°iodine = 0.5355 V (blank 1) Calculate the standard cell potential for the reaction. (blank 2) Is this process spontaneous? (yes or no) (blank 3) How many electrons are transferred during the redox reaction? (blank 4) Calculate the equilibrium constant K.
The reaction between hydrogen peroxide and iodide has been investigated by F. Bell, R. Gill, D....
The reaction between hydrogen peroxide and iodide has been investigated by F. Bell, R. Gill, D. Holden, and W. F. K. Wynne-Jones in J. Phys. Chem. 55, 874 (1951): H2O2 + 2I- + 2H+ ----> 2H2O + I2. The reaction proceeds by two parallel mechanisms and leads to the rate law: -d[H2O2]/dt = d[I2]/dt = k1[H2O2][I-] + k2[H2O2][I-][H+]. The rate constants k1 and k2 are observed to vary with ionic strength in the fashion shown in the table. Are these...
cell A voltaic cell employs the following redox reaction: Cu(s) + 2 Ag+ (aq) – Cu...
cell A voltaic cell employs the following redox reaction: Cu(s) + 2 Ag+ (aq) – Cu 2+ (aq) + 2 Ag(s) The E° for the reaction is +0.46 V. The initial (nonstandard) conditions are: [Ag +] = 0.025M; [Cu 2+] = 2.0 M Part a. Write the half-reaction that occurs at the anode. Part b. Write the half-reaction that occurs at the cathode. Part c. How many electrons are transferred in this reaction? Part d. What is the cell potential,...
A voltaic cell employs the following redox reaction: Cu(s) + 2 Ag + (aq) → Cu...
A voltaic cell employs the following redox reaction: Cu(s) + 2 Ag + (aq) → Cu 2+ (aq) + 2 Ag(s) The Eº cell for the reaction is +0.46 V. The initial (nonstandard) conditions are: [Ag +] = 0.025M ; [Cu 2+] = 2.0 M Part a. Write the half-reaction that occurs at the anode. Part b. Write the half-reaction that occurs at the cathode. Part c. How many electrons are transferred in this reaction? Part d. What is...
all parts please cell A voltaic cell employs the following redox reaction: Cu(s) + 2 Ag+...
all parts please
cell A voltaic cell employs the following redox reaction: Cu(s) + 2 Ag+ (aq) Cu 2+ (aq) + 2 Ag(s) The E° for the reaction is +0.46 V. The initial (nonstandard) conditions are: (Ag +) = 2.0 M; [Cu 2+] = 0.025 M Part a. Write the half-reaction that occurs at the anode. Part b. Write the half-reaction that occurs at the cathode. Part c. How many electrons are transferred in this reaction? Part d. What is...
A voltaic cell employs the following redox reaction: Cu(s) + 2 Ag + (aq) → Cu...
A voltaic cell employs the following redox reaction: Cu(s) + 2 Ag + (aq) → Cu 2+ (aq) + 2 Ag(s) The Eº cell for the reaction is +0.46 V. The initial (nonstandard) conditions are: [Ag +] = 2.0 M ; [Cu 2+] = 0.025 M Part a. Write the half-reaction that occurs at the anode. Part b. Write the half-reaction that occurs at the cathode. Part c. How many electrons are transferred in this reaction? Part d. What is...
a) Part a. Define A, Z, and X in the following notation used to specify a...
a) Part a. Define A, Z, and X in the following notation used to specify a nuclide: A 2X. Part b. How are A and Z related? Part c. How many protons and how many neutrons are there in the common radiotracer, Iron-59? b) For the following redox reaction at 25°C, Ecell = 2.24 V. Calculate the equilibrium constant, K. Mg(s) + Pb 2+ (aq) + Mg - (aq) + Pb(s) c) A voltaic cell is set up with one...
The equilibrium constant, K, for a redox reaction is related to the standard potential, Eº, by...
The equilibrium constant, K, for a redox reaction is related to the standard potential, Eº, by the equation In K = nFE° RT where n is the number of moles of electrons transferred, F (the Faraday constant) is equal to 96,500 C/(mol e), R (the gas constant) is equal to 8.314 J/(mol · K), and T is the Kelvin temperature. Standard reduction potentials Reduction half-reaction E° (V) Ag+ (aq) + e +Ag(s) 0.80 Cu²+ (aq) + 2e + Cu(s) 0.34...
Cell Potential and Equilibrium Standard reduction potentials The equilibrium constant, K, for a redox reaction is...
Cell Potential and Equilibrium Standard reduction potentials The equilibrium constant, K, for a redox reaction is related to the standard cell potential, Ecel, by the equation Reduction half-reaction (V) Ag+ (aq) + e-→Ag(s) Cu2+ (aq) + 2e-→Cu(s) 0.34 Sn (a) 4e-Sn(s 0.15 2H' (aq) + 2e-→H2 (g) Ni2+ (aq) + 2e-→Ni(s)-0.26 Fe2+ (aq) + 2e-→Fe(s)-0.45 Zn2+ (aq) + 2e-→Zn(s)-0.76 Al3+ (aq) +3e-→Al(s) -1.66 Mg2+ (aq) + 2e-→Mg(s) -2.37 0.80 n FEcell where n is the number of moles of electrons...
cell A voltaic cell employs the following redox reaction: Cu(s) + 2 Ag+ (aq) – Cu 2+ (aq) + 2 Ag(s) The E° for the reaction is +0.46 V. The initial (nonstandard) conditions are: [Ag +] = 0.025M; [Cu 2+] = 2.0 M Part a. Write the half-reaction that occurs at the anode. Part b. Write the half-reaction that occurs at the cathode. Part c. How many electrons are transferred in this reaction? Part d. What is the cell potential,...
all parts please
cell A voltaic cell employs the following redox reaction: Cu(s) + 2 Ag+ (aq) Cu 2+ (aq) + 2 Ag(s) The E° for the reaction is +0.46 V. The initial (nonstandard) conditions are: (Ag +) = 2.0 M; [Cu 2+] = 0.025 M Part a. Write the half-reaction that occurs at the anode. Part b. Write the half-reaction that occurs at the cathode. Part c. How many electrons are transferred in this reaction? Part d. What is...
a) Part a. Define A, Z, and X in the following notation used to specify a nuclide: A 2X. Part b. How are A and Z related? Part c. How many protons and how many neutrons are there in the common radiotracer, Iron-59? b) For the following redox reaction at 25°C, Ecell = 2.24 V. Calculate the equilibrium constant, K. Mg(s) + Pb 2+ (aq) + Mg - (aq) + Pb(s) c) A voltaic cell is set up with one...
The equilibrium constant, K, for a redox reaction is related to the standard potential, Eº, by the equation In K = nFE° RT where n is the number of moles of electrons transferred, F (the Faraday constant) is equal to 96,500 C/(mol e), R (the gas constant) is equal to 8.314 J/(mol · K), and T is the Kelvin temperature. Standard reduction potentials Reduction half-reaction E° (V) Ag+ (aq) + e +Ag(s) 0.80 Cu²+ (aq) + 2e + Cu(s) 0.34...
Cell Potential and Equilibrium Standard reduction potentials The equilibrium constant, K, for a redox reaction is related to the standard cell potential, Ecel, by the equation Reduction half-reaction (V) Ag+ (aq) + e-→Ag(s) Cu2+ (aq) + 2e-→Cu(s) 0.34 Sn (a) 4e-Sn(s 0.15 2H' (aq) + 2e-→H2 (g) Ni2+ (aq) + 2e-→Ni(s)-0.26 Fe2+ (aq) + 2e-→Fe(s)-0.45 Zn2+ (aq) + 2e-→Zn(s)-0.76 Al3+ (aq) +3e-→Al(s) -1.66 Mg2+ (aq) + 2e-→Mg(s) -2.37 0.80 n FEcell where n is the number of moles of electrons...
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