Concentration Dependence of Reaction Rates Introduction: The purpose of this experiment was to determine the differential rate law for a chemical reaction based on the relationship between the concentration of reactants and the rate of reaction. Since spectrophotometers‚ like Spec-20s‚ provide information about concentration‚ these instruments were used to monitor the increase or decrease in concentration of a reactant in a solution over time. By plotting [phph2-] versus time and changing the concentration
Premium Rate equation Reaction rate
Effect of Substrate Concentration on Initial Reaction Rate The purpose of this study is to identify the relationship between substrate concentration and initial reaction rate provided that substrate concentration is much greater than enzyme concentration. Enzymes are essential to life as they are required for many vital metabolic reactions to occur. To adequately explain the properties of enzymes‚ it is assumed that an enzyme-controlled reaction takes place through an enzyme-substrate complex
Premium Reaction rate Enzyme Chemical reaction
Biochemical Engineering James M. Lee Department of Chemical Engineering Washington State University Pullman‚ WA 99164-2714 jmlee@wsu.edu Chapter 1. Introduction ................................................................ 1 1.1. 1.2. 1.3. 1.4. 1.5. 1.6. Biotechnology .............................................................................. 1 Biochemical Engineering............................................................. 2 Biological Process....................................
Premium Enzyme Chemical reaction Chemical engineering
John Pham Toothpick-ase Lab The Purpose: The purpose of this lab was to recreate and simulate the reaction of an enzyme with its substrate. Part A: Time (seconds) Number of toothpicks broken 20 10 Toothpicks 40 19 Toothpicks 60 30 Toothpicks 80 39 Toothpicks 100 51 Toothpicks Time Interval (seconds) Rate of reaction 0-20 .5 20-40 .45 40-60 .55 60-80 .45 80-100 .6 Analysis Questions: 1. The “Toothpickase” enzyme has 2 subunits‚ the hands‚ acting as the enzyme
Premium Enzyme Chemical reaction Reaction rate
foam-bed reactor‚ under a variety of conditions and experimental verification of the model. Reaction conditions were at room temperature and atmospheric pressure. Experimentally studied variables are air flow rate‚ foam height‚ initial sodium hydroxide concentration‚ surfactants and surfactant concentration. The experimental results indicate that the conversion in the reactor increases with the increase in air flow rate‚ initial NaOH conc. The nature of surfactant has considerable effect on the foamability
Premium Carbon dioxide Reaction rate Chemical engineering
This experiment shows the effects of changing the pH level has on Catalase. As predicted‚ the farther away the pH levels got from the optimum pH (7.2)‚ the lower the reaction rate. At a pH of 7.2‚ the foam of the reaction measures 6cm. At a ph of 3 it measures 2.5 cm‚ at a pH of 5 it measures 2.75 cm‚ at ph 9 it measures 2.3 and at 11cm it measures 2cm. pH measures the hydrogen ion concentration of a substrate. By changing the pH of the catalase‚ the enzyme was denatured. Denaturing is the result
Premium Enzyme Chemical reaction Catalysis
processes Chapter 53 Rate equation Experiment 53.1 Determining the rate equation of a reaction using method of initial rate (A microscale experiment) 1 Chapter 54 Activation energy Experiment 54.1 Determining the activation energy of a chemical reaction 3 Chapter 55 Catalysis and industrial processes Experiment 55.1 Investigating the action of a catalyst 6 Experiment 55.2 Investigating homogeneous catalysis 8 Experiment 55.3 Investigating ways to change the rate of a reaction with a suitable catalyst
Premium Chemical reaction Chemistry Reaction rate
marks questions. (iii) All the three in five marks questions. Guidelines for Units 10-13 of syllabus. These units include questions on: Nomenclature Reasoning Distinguishing between compounds Name reactions Reaction Mechanism Word problems (conversions) covering Properties and reactions of functional groups : 2 marks : 6 marks : 2 marks : 2 marks : 2 marks : 5 marks E. Numericals : Weightage of 8 -10 marks in total has been assigned to numericals. F. Weightage to difficulty
Premium Chemical reaction Chemistry Reaction rate
Quezon City 1101 Philippines ABSTRACT The rationale of the experiment is basically founded in the concept of reaction rates as affected by enzyme‚ and how the enzyme works is competed by a competitive inhibitor‚ thereby impeding the forward reaction. In this experiment‚ o-diphenol oxidase‚ an enzyme that causes the browning in fruits‚ was extracted from banana and reaction rate of this was established with various concentrations of catechol‚ the substrate‚ using the Michaelis-Menten‚ Lineweaver-Burk
Premium Enzyme inhibitor Chemical kinetics Chemical reaction
Study material CHEMISTRY CLASS: XII KENDRIYA VIDYALAYA SANGATHAN LUCKNOW R E G I O N 2009-2010 Study Material Class XII -Chemistry SHRI RANGLAL JAMUDA IAS‚COMMISSIONER CHIEF Patron KENDRIYA VIDYALAYA SANGTHAN NEW DEHLI SHRI M.S Chauhan Asst. Commissioner Patron Kendriya Vidyalaya Sangthan Lucknow Region SHRI S.S. Rawat Guidance Smt. A.N Siddiqui (Education officer) (Education officer) SHrI K.‚M. Bhatnagar (Education officer) Co-ordinator SHRI. T. Singh Principal K.V. No. 2
Premium Rate equation Reaction rate Chemical kinetics