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
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1. Factors affecting response rates in survey development 1.1. Content of web questionnaires Response rate is closely related to who the sponsors are‚ what the topic is‚ and how long the survey takes to complete. First: Official sponsorship of a surveys: sponsored by academic and governmental agencies have higher response rates than those sponsored by commercial Influenced how respondents perceived and answered similar questions about sexual harassment by a neutral research institution and a feminist
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reaction rate of a chemical reaction is determined as the change in the concentration of a reactant or product over the change in time. [1] The rate of a reaction is determined by experiment. Many factors influence the rate of a reaction: the nature of the reaction‚ concentration‚ pressure‚ temperature‚ and surface area‚ presence of catalyst and intensity of light. [2] For a chemical reaction‚ the rate law or rate equation is a mathematical expressed equation that links the reaction rate with the
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Cause and Effect on The Cold Equation In the story "the Cold Equation" by Tom Godwin‚ the author created a cause and effect relationship by having Marilyn decide to stowaway on the emergency dispatch ship that only has enough fuel for one person. Because Marilyn decided to stowaway she ended her own life‚ forced Barton to deal with having to kill a woman‚ negatively affects the results of the mission to Woden‚ and for her parents and brother to deal with her death. Marilyn’s last moments of her life
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INTRODUCTION Chemical kinetics‚ which can also be explained as reaction kinetics‚ studies the rates of chemical processes and reactions. A lot of this has to do with the speed at which a chemical reaction occurs for instance the rate at which reactants and products appear and disappear. In this case chemical kinetics goes further in depth to understand what conditions affect the rate of a given reaction. This is important because it allows scientists to determine what type of reaction can occur
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conditions was used. A method of sequential regression analysis was applied to determine the kinetic parameters from the temperature and conversion profiles of the bed. The experimental data could be fitted by a power-law type of reaction rate expression. The rate equation combined with a plug flow model of the bed was successfully used to predict the fixed-bed behaviour within large temperature‚ concentration and space velocity intervals. 1. Introduction To study the kinetics of catalytic reactions
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1 UNIT 9 CHEMICAL KINETICS 1. (c) mole 1–1 sec–1 The rate law for a reaction A + B →products‚ is rate = k [A]1[B]2. 7. Then‚ which one of the following statements is false ? (a) If [B] is held constant while [A] is doubled‚ the reaction will proceed twice as fast. (b) If [A] is held constant while [B] is reduced to one quarter‚ the rate will be halved (c) If [A] and [B] are both doubled‚ the reaction will proceed 8 times as fast. 2. Fro a first order reaction‚ a straight
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Determination of Reaction Rate Law from the Reaction of Crystal Violet with Sodium Hydroxide ______________________________________________ Abstract: This experiment helps determine the rate of reaction of crystal violet while it reacts with sodium hydroxide with respect to crystal violet. The amount of sodium hydroxide is varied in this experiment while crystal violet is kept at a constant. The transmittance of crystal violet is observed and recorded using a colorimeter and the data obtained is
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Question 1 – Identify equation modeling a scenario 4 Question 2 – Identify a non-equivalent equation 4 Question 3 – Evaluate equation for a given value in context 5 Question 4 – Identify equation modeling perimeter 6 Question 5 – Determine equation to model a situation 6 Question 6 – Determine equation of a line given a point and the slope 7 Question 7 – Find interval of largest change on graph 8 Question 8 – Find solution to equation 9 Question 9 – Interpret
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A. As a mother is looking at going back to work after staying home with her daughter for the first year she is considering two daycare options. The first option is an in home daycare that charges a flat rate of $5.00 an hour. The second option is a center-based day care that charges $185.00 a week based on 40 hours per week‚ they charge an additional $8.00 an hour for any time proceeding the 40 hours. The distance to both facilities are very close‚ making diving distance obsolete. The mother will
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