[shryocdj]

can anyone help me with rate constants?

i had to do a lab with crystal violet kinetics.

ive got that the reaction is first order with respect to [CV] and first order overall, does that mean it is also first order with respect to [OH]?

And I've got what i think are the Kobs values for each trial using the y-int (of the plot of ln A vs time) minus the final point on the plot all over the time elapsed.  that should be Kobs, right?

then to get the rate constant (k) im trying Kobs/[OH], but I dont know if I have to have an exponent pertaining to the order of the reaction.

help please please please

[Hunt]

What's the rxn you're studying? What's [CV]? And what is that Kobs?

[tamim83]

ive got that the reaction is first order with respect to [CV] and first order overall, does that mean it is also first order with respect to [OH]?

No, that would mean the reaction order was zero with respect to [OH-].