Kinetics Lab – Lab Report – Kaytlin B Rogers
Search
Essays
Sign up
Sign in
Contact us
Tweet
Index
/Science
Kinetics Lab
Introduction The kinetics lab was conducted in order to determine the rate law and activation energy for the bleaching of brilliant blue dye. In order to accomplish this, colorless solutions created as a product of the decomposition of the dye, a spectrometer and Beer’s Law were utilized. Additionally, two different temperatures and the two-point form of the Arrhenius equation were utilized to determine the reaction’s activation energy.Results and DiscussionTwo experiments, one using room temperature 294.9 K and the other using 318 K, were performed using the initial concentration of M brilliant blue dye and 0.0244 M sodium hypochlorite. [pic 2][pic 3][pic 1]The spectrometer was set to a wavelength of 630 nm then was blanked with DI water. For the first experiment, in a small beaker 5.0 mL of brilliant blue solution with 5.0 mL of the sodium hypochlorite were mixed. This mixture was put into a cuvette and a timer was started. Intervals of two minutes were timed until ten data points were collected. At each two minute mark, the time and absorbance were recorded. The concentration for each absorbance was found using this form of Beer’s Law (A=ElC): [pic 4] [pic 5] [pic 6] [pic 7][pic 8][pic 9][pic 10] For the second experiment, the same steps for the first experiment were followed, but once the mixture was inserted into the cuvette, it was put into a water bath. At measured intervals of two minutes, the cuvette was taken out, dried, measured and the absorbance and the time were recorded. Once this is done the cuvette was returned to the water bath. [pic 11][pic 12]Finally, the results from the two different temperatures and the two-point form of the Arrhenius equation: [pic 13], were used to determine the reaction’s activation energy which was determined to be . The rate law equation,[pic 15], and graphs were used to determine x and y in the rate law. The order of the reaction with respect to was determined to be first order. The overall rate law at room temperature is , and the overall rate at 45˚C is .[pic 14][pic 16][pic 17][pic 18]
Continue for 2 more pages »
Read full document
Download as (for upgraded members)
Citation Generator
MLA 7
CHICAGO
(2018, 03). Kinetics Lab. EssaysForStudent.com. Retrieved 03, 2018, from
“Kinetics Lab” EssaysForStudent.com. 03 2018. 2018. 03 2018 <
"Kinetics Lab." EssaysForStudent.com. EssaysForStudent.com, 03 2018. Web. 03 2018. <
"Kinetics Lab." EssaysForStudent.com. 03, 2018. Accessed 03, 2018.
Essay Preview
By: Kaytlin B Rogers
Submitted: March 15, 2018
Essay Length: 538 Words / 3 Pages
Paper type: Lab Report Views: 286
Report this essay
Tweet
Related Essays
Lab Report: Qualitative Analysis
Lab Report: Qualitative Analysis Aim: The aim of this experiment is to identitfy an unknown powder by conducting several experiments to determine the anion and
259 Words | 2 Pages
Determining Optimum Environmental and Chemical Effects on Enzyme Kinetics
Abstract Enzymes, fundamental proteins that catalyze reactions by lowering activation energy, operate under kinetic principle and can react slower or faster with different ph and
1,127 Words | 5 Pages
Physics Lab Speed of Sound in Air
Physics Waves Lab SL Introduction: This lab will investigate the properties of mechanical waves such as a longitudinal wave, focusing on the question: Does a
680 Words | 3 Pages
Ball Toss Lab
Nikki Champney Mr. DiMicco March 3, 2008 Ball Toss Lab Data: Time(s) Velocity(m/s) 0.602 0.314 0.688 1.491 0.774 3.476 0.860 3.272 0.946 2.326 1.032 1.548
294 Words | 2 Pages
Similar Topics
Chemistry Planning Designing Lab
Investigating Kinetics Reaction Between Iodide
Get Access to 89,000+ Essays and Term Papers
Join 209,000+ Other Students
High Quality Essays and Documents
Sign up
© 2008–2020 EssaysForStudent.comFree Essays, Book Reports, Term Papers and Research Papers
Essays
Sign up
Sign in
Contact us
Site Map
Privacy Policy
Terms of Service
Facebook
Twitter