[yitzik]

HELLO!
i have done the famous experiment of the IODINE CLOCK and i'm trying to find out the reaction order but it seems that something wrong with the data.
time (s)   [S2O3] (liter)      ln(S2O8)   [S2O8] (liter)   ln(I-)    (liter)  [KI]
19       0.0004      -3.912023005   0.02          -2.525728644        0.08
58       0.0004      -3.912023005   0.02          -3.218875825        0.04
61           0.0004      -3.912023005   0.02      -3.912023005       0.02
30        0.0004      -3.506557897   0.03          -3.218875825           0.04
25       0.0004      -3.218875825   0.04      -3.218875825           0.04
119           0.0004      -4.605170186   0.01      -3.912023005           0.02

it seems that i have a mistake in some of the trials but idon't know which. using excel to plot the concentarion of each component vs ln rate dosnt give me an accurate result of the exponent of each specie.

how can i get on with thouse values?

thank you!

[yitzik]

the main mistake is that the duration of the second and third trials is almost he same although there is a change in concentration.