What is the activation energy of crystal violet?
The activation energy of the reaction was determined as 60.57 kJ/mol. The reaction was an endothermic reaction having enthalpy values of 58.13 and 58.29 kJ/mol at 21 and 6 °C, respectively.
What is the rate law of crystal violet?
The rate law for this reaction is in the form: rate = k[CV+]m[OH–]n, where k is the rate constant for the reaction, m is the order with respect to crystal violet (CV+), and n is the order with respect to the hydroxide ion.
Why is crystal violet first order?
Discoloration ofcrystal violet is first order with respect to the concentration of crystal violet and hydroxyl ion concentration.
Does crystal violet adhere Beer’s law?
Since the hydroxide ion concentration is more than 1000 times as large as the concentration of crystal violet, [OH-] will not change appreciably during this experiment. Absorbance is proportional to the concentration of crystal violet (Beer’s law).
What is the half life of crystal violet?
[CV+ + OH– Þ CVOH], using a Colorimeter tool and computer software to track the absorbance of a 1/1 solution of 0.02M NaOH and 2×105M Crystal Violet….Rate Law Determination of a Crystal Violet Reaction.
| [CV–] after mixing | 0.00001M |
|---|---|
| Rate constant k | 0.0909 |
| Rate law expression (omit OH–) | Rate = k [CV] |
| Half-life of the reaction | 7.91s |
Is crystal violet and NaOH first order?
In Equations (3) and (4), [CV]o is the concentration of crystal violet in the reaction mixture at time zero, before any reaction has occurred; [CV]t is the concentration at any time t during the course of the reaction. If a plot of ln [CV]t versus time is linear, y = 1 and the reaction is first order in CV.
What is the half life equation for crystal violet?
Objective: To determine the reaction order with respect to crystal violet and determine the rate constant and half life for the reaction: [CV+ + OH– Þ CVOH].
What is the concentration of crystal violet?
Crystal violet, 10% alcoholic: 2 ml.
What is the maximum absorbance of crystal violet?
In the wavelength range from 300 to 700 nm, heparin showed no absorbance and crystal violet has a maximum absorption at 592 nm (curve 1).
What is the reaction order with respect to the crystal violet?
The first order graph of crystal violet hydroxylation for both trails is a plot of natural logarithm of absorbance over time. The graph is linear with the higest R2 value of 0.99702 and 0.99801 for both trials. Thus, the order of reaction (m) with respect to crystal violet is first.
What is the overall order of the reaction of the hydroxylation of crystal violet?
What is the formula for crystal violet?
C25N3H30Cl
Crystal violet/Formula