Equation of line: y=-0.0064x-0.6801 R^2=0.9971 EDIT: Please determine the reacti

Question

Equation of line: y=-0.0064x-0.6801

R^2=0.9971

EDIT: Please determine the reaction order with respect to OH and find the overall rate law. Please show all work

ale work KINEO504: Determining the Rate Law for the Cryntal Viole-Hydroxside Ion Reaction 110 plot of absorbance function that yields the best straight line for the data: Lnversus order of reaction with respect to crystal violet:ir slope of straight line:?0-00114 calculations to determine reaction order with respect to OH-. overall rate law:

Explanation / Answer

ln[A] vs t plot with negative slope suggests that order of the reaction is 1.

For first order reaction

- d[A]/dt = K[A]

Or, d[A] / [A] = - K.dt

Integrating both side

ln[A] = - Kt + C

When, t = 0, then, [ A] = [ A]o

ln [ A] = - Kt + ln[ A]o. (1)

Now, in the given equation of line.

Y = - 0.064x - 0.680 (2)

Comparing with equation 1

K = 0.064

ln[A]o = - 0.680

Or, [ A]o = 0.506

Therefore overall rate law;

R = 0.064 * [Crystal violet]1 [OH] 0

Hence, order of the reaction with respect to OH is zero.

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