Question

Given the data tables below for the concentrations of crystal violet dye in the crystal violet-hydroxide reaction CV⁺ + NaOH^- --> CVOH + Na, calculate the order of hydroxide if the order of crystal violet is first order (ln[A] shows a linear relationship for CV).

CV⁺ + OH^- --> CVOH

Data

Trial 1: CV + 0.020M NaOH
Time (s)	%TCV	[A]CV	ln[A]CV	1/[A]CV
190	49.8	0.303	-1.195	3.303
250	52.6	0.279	-1.276	3.584
310	55.8	0.253	-1.373	3.947
370	58.4	0.234	-1.454	4.281
430	61.2	0.213	-1.545	4.689
490	63.8	0.195	-1.634	5.123

Trial 2: CV + 0.040M NaOH
Time (s)	%TCV	[A]CV	ln[A]CV	1/[A]CV
180	54.8	0.261	-1.342	3.828
240	59.6	0.225	-1.493	4.449
300	64.2	0.192	-1.648	5.196
360	68.4	0.165	-1.802	6.063
420	72.2	0.141	-1.956	7.069
480	75.8	0.120	-2.118	8.310

Answer 1