Gases and Liquids in Cell Diagrams

[305174946]

When making a cell diagram do you include gasses and liquids? Especially liquids like H2O, and the reactants are in aqueous form? Like isn't it implied that there is water on both sides on the reaction, so we shouldn't put it?

[Janice Park 1E]

Hey! I think that we only include gases and liquids into cell diagrams when they are either the anode or cathode where the element gets oxidized or reduced, or if they are oxidized or reduced to form the ions in the solution. Since H2O isn't usually directly part of the reaction, I think it's safe to say we don't usually include it.

[chloewinnett1L]

H20 shouldn't be included in the cell diagram! Also, if you're ever in doubt about what to put in your cell diagram, just make sure you have included each component of the half reactions. So you should have the solid, any ions involved in reduction/oxidation, and the conductor (if it is separate from the solid) on each side of the salt bridge.

[Emily Huang 1E]

Water should only be included in the cell diagram if H20 is being reduced or oxidized in the reaction. If H20 is reduced to H2(g) then you would include H20 in the cell diagram. Otherwise if nothing is happening to H20 then it does not need to be included