Cell diagrams
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Cell diagrams
Can someone explain when and why we use Pt(s) in our cell diagram? What does it mean? For example: Pt(s) | H2 (g) | H+ (aq) || Cl2 (g) | Cl- (aq) | Pt (s)
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Re: Cell diagrams
It represents what is used as an electrode to transfer electrons in a galvanic cell. Because the redox reaction doesn't include a solid metal, an inert metal, like Platinum is used as the electrode.
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Re: Cell diagrams
Pt(s) plays a role as a conductor in the case that a redox reaction contains no solid metals. Platinum is resistant to oxidation and which is why it is commonly utilized as an electrode.
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Re: Cell diagrams
Pt is necessary when there is no conductor, so Pt must be added to act as the conductor electrode.
Re: Cell diagrams
We use a platinum electrode, Pt(s) to catalyze the reaction as platinum facilitates the formation of hydrogen gas without itself being consumed. It is often used when half-reactions involve species that do not interact with other electrode material.
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