Purpose: To determine the general rate law for the reaction of S2O82- + I- through a series of experiments and calculations. Materials: -Temperature probe -3 large test tubes -3 rubber stoppers -Pipets -0.20 M KI soln -0.20 M NaCl soln -0.010 M Na2S2O3 soln -2% starch soln -0.20 M K2SO4 -0.20 M K2S2O8 -0.2 M CuSO4 -Timer or stopwatch -Small beaker -Hot water Procedure: Refer to Lab #12‚ No changes Data: Table #1: Quantitative/Qualitative Observations Room Temp: 25.4°C
Premium Chemical reaction Reaction rate
ultimately in vain. Step 3 of the Strategic Change Cycle‚ where the NPO clarifies its organizational mission and values‚ allows the NPO to reexamine and reevaluate whether it’s working toward the right goals. This is the foundational step in the process in that it is pointing the organization in the right direction. Failing to follow
Premium Management Organization Leadership
Lab #3: Method of Initial Rates: Iodine Clock Introduction The detailed system of steps in a reaction is called the reaction mechanism‚ and it is one of the principal aims of chemical kinetics to obtain information to aid in the elucidation of these mechanisms in order to better understand chemical processes. Reactions usually occur in a stepwise manner with each step proceeding at a different speed. If the rate of reaction is slow enough to measure‚ this is indicative of a step much slower
Premium Reaction rate Chemical kinetics Chemistry
Introduction The purpose of this experiment is to determine the rate equation for the “Iodine Clock Reaction” experiment. The experiment will consider the equations 〖2I〗^-+S_2 O_8→2〖〖SO〗_4〗^(2-)+I_2 and I_2+2〖S_2 O_3〗^(2-)→2I^-+S_4 O_6 in order to determine the rate law of Rate=k[〖〖S_2 O_8〗^(2-)]〗^a 〖[I^-]〗^b by using the experimental data to calculate the values of exponents a and b as well as the rate constant k. Experimental Supplies Needed: 250 mL Erlenmeyer flask‚ 100 mL beaker‚ graduated
Premium Chemical kinetics Rate equation Reaction rate
EXPERIMENT 3-CHEMICAL KINETICS: THE IODINE-CLOCK REACTION J.CHAN1 and C.CABANLIG2 1NATIONAL INSTITUTE OF MOLECULAR BIOLOGY AND BIOTECHNOLOGY‚ COLLEGE OF SCIENCE 2NATIONAL INSTITUTE OF MOLECULAR BIOLOGY AND BIOTECHNOLOGY‚ COLLEGE OF SCIENCE UNIVERSITY OF THE PHILIPPINES‚ DILIMAN‚ QUEZON CITY 1101‚ PHILIPPINES DATE SUBMITTED: JANUARY 8‚ 2013 DATE PERFORMED: DECEMBER 5‚ 2012 ------------------------------------------------- ABSTRACT The kinetics of the reaction between persulfate (S2O82-)
Premium Chemical kinetics Reaction rate Chemistry
As some college students spend their summers working part-time jobs and spending time with friends‚ this is not the case for Andrew Braaksma. He spends his summer breaks on an assembly line at a factory. Braaksma has been working in the factory since he got out of high school and he has learned some valuable lessons about life. In “Some Lessons from the Assembly Line” Braaksma comes to the realization that his choice to continue education and go onto college allows him better opportunity and experience
Premium
for political parties‚ but when James Madison wrote the Constitution no one even thought of even having political parties. Shortly after the Constitution was written‚ however‚ political parties formed. How did these political parties get formed? Well‚ it started how many other political parties are formed today‚ a disagreement. Leaders of the American Revolution hated the idea of political parties.
Premium United States President of the United States Political philosophy
Kinetics: The Iodine Clock Jane Smith Purpose: The objective of this experiment was for students to apply their knowledge of kinetics and rate laws in order to determine the rate of a chemical reactions‚ activation energy‚ and frequency factors of those reactions. Specifically‚ this experiment was performed using a series of solutions with varying concentrations of KI‚ Na2S2O3‚ and (NH4)2S2O3 . Students recorded time elapsed to observe physical evidence of a reaction taking place in a solution. The
Premium Chemical reaction Chemistry Reaction rate
took place between an iodine and hydrogen peroxide solution. In addition to a change in concentration‚ a change in temperature and a catalyst variable was also introduced to conclude whether or not their presence affected the overall speed of the reaction. In order to determine the effects of these variables‚ several iodine and hydrogen peroxide reactions were prepared‚ (all at varying temperatures‚ volumes‚ and concentrations)‚ and reacted until the solutions color turned from clear to dark blue.
Premium
ACCT 1150 Jex Chapter 1 End of Chapter Questions True/False 1. True 2. True 3. False 4. False 5. False 6. False 7. True 8. True 9. True 10. False Multiple Choice 1. C. qbw 2. B. Chart of Accounts 3. A. Are keyboard command shortcuts 4. A. Give commands to QuickBooks 5. B. An adding machine tape 6. A. Allows you to give commands to QuickBooks according to the type of transaction being entered 7. B. A picture 8. B. Help 9. D. A backup file 10. The title bar Fill-In
Premium Accounts receivable Accounting software