3. Rosenberg was studying the electric field effect on bacterial growth when he unknowingly carried out an anodic reaction on the platinum electrode that led to the discovery of the anticancer drug cisplatin, cis- [PtCl2(NH3)2]. (i) Pt(s) + 2 NH3(aq) + 2 CI (aq) cis-[PtCl2(NH3)2](aq) + 2 e E° = 0.274 V The likely cathodic reaction is the evolution of H₂ gas from water as shown in the equation below. (ii) 2 H₂O(1) +2 e H2(g) + 2OH(aq) Eº = -0.828 V The given E° values above are at 25 °C. A. Write the balanced chemical equation for the overall electrolytic reaction for the synthesis of cisplatin. B. Draw an electrolytic cell setup for the electrochemical reaction described above. Label the electrodes (anode and cathode) and indicate the direction of electron flow. C. Calculate the minimum required voltage to start the electrolytic synthesis of cisplatin.
3. Rosenberg was studying the electric field effect on bacterial growth when he unknowingly carried out an anodic reaction on the platinum electrode that led to the discovery of the anticancer drug cisplatin, cis- [PtCl2(NH3)2]. (i) Pt(s) + 2 NH3(aq) + 2 CI (aq) cis-[PtCl2(NH3)2](aq) + 2 e E° = 0.274 V The likely cathodic reaction is the evolution of H₂ gas from water as shown in the equation below. (ii) 2 H₂O(1) +2 e H2(g) + 2OH(aq) Eº = -0.828 V The given E° values above are at 25 °C. A. Write the balanced chemical equation for the overall electrolytic reaction for the synthesis of cisplatin. B. Draw an electrolytic cell setup for the electrochemical reaction described above. Label the electrodes (anode and cathode) and indicate the direction of electron flow. C. Calculate the minimum required voltage to start the electrolytic synthesis of cisplatin.
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter25: Voltammetry
Section: Chapter Questions
Problem 25.15QAP
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![3. Rosenberg was studying the electric field effect on bacterial growth when he unknowingly carried out an
anodic reaction on the platinum electrode that led to the discovery of the anticancer drug cisplatin, cis-
[PtCl2(NH3)2].
(i) Pt(s) + 2 NH3(aq) + 2 CI (aq) cis-[PtCl₂(NH3)2](aq) + 2 e
E° = 0.274 V
The likely cathodic reaction is the evolution of H₂ gas from water as shown in the equation below.
(ii) 2 H₂O +2 e
H2(g) + 2OH(aq)
Eº = -0.828 V
The given Eº values above are at 25 °C.
A. Write the balanced chemical equation for the overall electrolytic reaction for the synthesis of cisplatin.
B. Draw an electrolytic cell setup for the electrochemical reaction described above. Label the electrodes
(anode and cathode) and indicate the direction of electron flow.
C. Calculate the minimum required voltage to start the electrolytic synthesis of cisplatin.
D. Calculate the standard Gibbs free energy (AG) and the equilibrium constant (Keq) for the overall
electrolytic reaction at 25 °C.
E. A galvanic cell was constructed by combining the anodic half-reaction (i) above with the reduction of
Pt²*+ (aq) to Pt(s) (Eºred = 1.180 V). Write the overall redox reaction and calculate the Eºcell for this new
cell.
F. Determine the formation constant (K₁) of cisplatin at 25 °C.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F90c204fe-cc6e-401e-bffc-7dbc94c9c433%2F19c293cd-bd97-48a5-86e9-1e48fab8afb4%2Fyh5ul8r_processed.png&w=3840&q=75)
Transcribed Image Text:3. Rosenberg was studying the electric field effect on bacterial growth when he unknowingly carried out an
anodic reaction on the platinum electrode that led to the discovery of the anticancer drug cisplatin, cis-
[PtCl2(NH3)2].
(i) Pt(s) + 2 NH3(aq) + 2 CI (aq) cis-[PtCl₂(NH3)2](aq) + 2 e
E° = 0.274 V
The likely cathodic reaction is the evolution of H₂ gas from water as shown in the equation below.
(ii) 2 H₂O +2 e
H2(g) + 2OH(aq)
Eº = -0.828 V
The given Eº values above are at 25 °C.
A. Write the balanced chemical equation for the overall electrolytic reaction for the synthesis of cisplatin.
B. Draw an electrolytic cell setup for the electrochemical reaction described above. Label the electrodes
(anode and cathode) and indicate the direction of electron flow.
C. Calculate the minimum required voltage to start the electrolytic synthesis of cisplatin.
D. Calculate the standard Gibbs free energy (AG) and the equilibrium constant (Keq) for the overall
electrolytic reaction at 25 °C.
E. A galvanic cell was constructed by combining the anodic half-reaction (i) above with the reduction of
Pt²*+ (aq) to Pt(s) (Eºred = 1.180 V). Write the overall redox reaction and calculate the Eºcell for this new
cell.
F. Determine the formation constant (K₁) of cisplatin at 25 °C.
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