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Rate Law Determination for the Crystal Violet Reac


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CV^(+)aq+OH^(-)aq-> CVOH(aq)
crystal violet reaction
purple
CV^(+) is _______
colorless
OH^(-) is _______
CV^(+)
crystal violet cation
CVOH
carbinol base
-->CVOH(aq)
rate=k[CV^(+)]^(x)*[CVOH]^(y)
K
thermal conductivity
1000 x larger than the concentration of CV^(+)
in crystal violet reaction the concentration of OH^(-) is more than _______
why doest the [OH-] concentration change during the reaction
the concentration of OH is 1000 x the concentration of CV^(+) so the [OH-] will not change majorily during the reaction
rate=k'[CV^(+)]^x
since OH concentration is so large simpler rate law
in psuedo rate law what is k'
k' is the pseudo rate constant which is the product of the overall rate constant k[OH^-]^y
CV^+
_______ is the only species that absorbs visible light
purple color; CV^+
as the rxn proceeds the _______ will fad as the [] of _______ decreases
beer's Law
A is proportional to concentration
measured absorbance of the solution
what is A in beer's law
molar absorptivity
constant of proportionality between A and bc, a measure of the probability of an electronic transitiion
backwards 3
a measure of how strongly the chemical species absorbs light
path length
what is b in beers law
what is c in beer's law
the concentration of the absorbing species
absorbance is proportional to _______ since _______ is constant
concentration; in equation A=Ebc Eb are constant in this experiment
the rxn is zero order in CV+
a linear plot of [CV+] vs t indicates
the rxn is first order
a linear plot of ln[CV+] vs t indicates a
the rxn is second order
a linear plot of 1/[CV+] vs t indicates
[CV+] vs t
a linear plot of _______ indicates the rxn is zero order in CV+
ln[CV+] vs t
a linear plot of _______ indicates the rxn is first order in CV+
1/[CV+] vs t
a linear plot of _______ indicates the rxn is second order in CV+
r=k'
rate law zero order
r=k'[CV+]
rate law first order
r=k'[CV+]^2
rate law second order
[CV+]=(-)k't+[CV+]o
integrated rate law zero order
ln[CV+]=(-)k't+ln[CV+]o
integrated rate law first order
1/[CV+]=k't+1/[CV+]o
integrated rate law second order
zero order graph what is on either axis
[CV+] is plotted on y-axis; time is plotted on the x-axis
-k'
zero order slop is _______
[CV+]; reaction order
absorbance is plotted in place of _______ to determine _______
t(1/2)=[A]o/(2k)
half life of zero order
t(1/2)=0.693/k
half life of first order
t(1/2)=1/(k[A]o)
half life of second order