## Platinum

$E_{cell} = E_{cell}^{\circ}-\frac{RT}{nF}\ln Q$

Lauryn Shinno 2H
Posts: 59
Joined: Fri Sep 28, 2018 12:24 am

### Platinum

When do you include platinum in the cell diagram?

Faith Fredlund 1H
Posts: 68
Joined: Fri Sep 28, 2018 12:18 am

### Re: Platinum

When the questions states that the electrode component of the cell diagram uses Platinum. In the cell diagram it is generally written as the outermost component of the electrode in the diagram.

Example: Hydrogen electrode constructed with Platinum
Right electrode: H+(aq)|H2(g)|Pt(s)
Left electrode: Pt(s)|H2(g)|H+(aq)

Diana Bibireata 1B
Posts: 60
Joined: Fri Sep 28, 2018 12:23 am

### Re: Platinum

The textbook states that you include an inert electrode such as platinum when the electrode reaction does not include a conducting solid as a reactant or product.