[jaschka]

hi im new to this forum and am hoping im not breaking any rules by asking a question as my first post.

for the reaction
2I^-_(aq) + S₂O₈^2-_(aq) -> 2SO₄^2-_(aq) + I_2(aq), i worked out that the order of reaction relative to [S₂O₈^2-] is 1, but i am unsure as to the order of reaction of [I^-]
from my graph it looks like an order of two.
is this correct:
R=k[S₂O₈^2-]¹[I^-]²
thank you for your help.
Ps:
does anyone know of a simple reaction in which i could measure the effect of surface area or temperature on rate, measuring by change of conductivity?

[vhpk]

What is R

[english]

What is R

Rate.

[vhpk]

I think it must be v(speed)
v=k[S₂O₈^2-]¹[I^-]²

[wilson]

J/v/R/r are all acceptable for denoting reaction rates.

[charco]

Look up Iodine clock reactions - you will find the orders there...