A scientist 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]. 1. Write the balanced chemical equation for the overall electrolytic reaction for the synthesis of cisplatin. 2. Draw an electrolytic cell setup for the electrochemical reaction described above, and label the electrodes. Please indicate the direction of electron flow. 3. Calculate the minimum required voltage to start the electrolytic synthesis of cisplatin.

Chemistry: Principles and Reactions
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Chapter17: Electrochemistry
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A scientist 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].

1. Write the balanced chemical equation for the overall electrolytic reaction for the synthesis of cisplatin.

2. Draw an electrolytic cell setup for the electrochemical reaction described above, and label the electrodes. Please indicate the direction of electron flow.

3. Calculate the minimum required voltage to start the electrolytic synthesis of cisplatin.

(i) Pt(s) + 2 NH3(aq) + 2 CI
E° = 0.274 V
cis-[PtCl₂(NH3)2](aq) + 2 e¯
(aq)
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) + 2 OH(aq)
E° -0.828 V
The given E° values above are at 25 °C.
Transcribed Image Text:(i) Pt(s) + 2 NH3(aq) + 2 CI E° = 0.274 V cis-[PtCl₂(NH3)2](aq) + 2 e¯ (aq) 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) + 2 OH(aq) E° -0.828 V The given E° values above are at 25 °C.
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