[dioxin]

Ok I just completed an iodine clock reaction as an exercise to determine rate order and constant.

I would like to ask why it is acceptable to round off the reaction order value obtained from the gradient of the plots to a whole integer? I have done some reading and searches and found that it is possible to have integers as fractions.

Moreover, being exponents, would it have a significant influence on the calculations?

[Donaldson Tan]

what level of chemistry are u studying?

as you study more and more advanced chemistry, u realise rate equations need not confine to the format of rate = k[[A]]^a

ocasionally, you find k[[A]]^a as a denominator in the rate equation.

[dioxin]

I am currently doing freshmen chemistry.

The question regarding why it is possible to approximate the reaction order to an integer is one of my post lab questions. As mentioned earlier, I have did my own search and made a few calculations (by varying the exponent by values of 0.1, 0.2). It does seem to be me that being an exponent, the difference can be very significant.

If the difference is significant, how can we conveniently approximate this value?