Adding Pt(s) to a Cell Diagram

[Bryce Ramirez 1J]

For 6L.5 part b, it adds Pt(s) to the Cell Diagram, but how do you know when to add it?

[Suraj Doshi 2G]

We must add solid platinum so that the electrons have something to bind to. Whenever no solid is present in the equations given, we have to include platinum.

[Pablo 1K]

Platinum does not involve itself in the reaction and therefore it should be included because it does not oxidate and functions as an electrode.

[Bryce Ramirez 1J]

We must add solid platinum so that the electrons have something to bind to. Whenever no solid is present in the equations given, we have to include platinum.

In the oxidizing part of the half reaction, I^- changes to I^2 (gas I assume). Does this mean that because there is no solid present, you have to add the Pt(s)?

[Rodrigo2J]

From my understanding, you add Pt(s) as the electrode if the half reaction (anode/cathode) does not have a solid metal or Hg(l).

[Abby Soriano 1J]

Platinum is added as an inert conductor for the movement of electrons in a galvanic cell when no solid is present to do this already.

[Zaynab Hashm 2I]

Platinum (Pt(s)) is adder to the cell diagram whenever the oxidation/reduction half-reactions do not have a solid to conduct electricity.

Hg(l) is an exception since it can conduct electricity, so Pt(s) is not needed.

[ThomasNguyen_Dis1H]

When there isn't a solid in your reaction or cell diagram, you need to add Pt(s) so it can act was an electrode, which allows the electrons to flow from one end to the other.

[Michelle N - 2C]

Just to add onto the question, when do we add Pt(s) to both sides of the cell diagram?

[205389184]

We add platinum to a cell diagram when there isn't already an electrode to help transport the electrons

[Sidharth D 1E]

For example when dealing with hydrogen gas in the galvanic cell, you would need to include Pt(s)

[Kaitlyn Ang 1J]

Add Pt(s) whenever there is no solid in the electrodes

[SVajragiri_1C]

Pt(s) is for when you only have a gaseous substance, or aqueous only.

[Brandon Valafar]

You add Platinum when the reduction reaction or the oxidation reaction does not have a solid metal element in it to conduct the electrons.

[WesleyWu_1C]

Platinum is an inert electrode which is why you add that to a cell diagram when you need an electrode. In addition, you can also use graphite (Cgraphite) because it is also an inert electrode.