BRIGGS RAUSCHER OSCILLATING CLOCK COURSEWORK Aim: To investigate the effect of temperature on the rate of reaction. To investigate the order of reaction with respect to hydrogen peroxide and ethanoic acid (acetic acid) by the use of an oscillating clock reaction. To determine the activation enthalpy with and without catalytic ions and use this to compare the effectiveness. To investigate the rate equation‚ rate constant and possible mechanism for this reaction. Background research: The Briggs-Rauscher
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increasing the concentration of KIO3‚ 0.15M concentrations resulted in times of 45.77 and 150.47 when tested twice which was unexpectedly higher than 13.68s at a concentration of 0.1 (Table 1). Similarly‚ raising the concentration of NaHSO3 decreased the clock period with the exception of the 0.2M concentration as it had the lowest time of 15.39s when 0.4M was expected to be lower (Table 2) These inconsistencies for the concentration data may have been due to measurement errors during the experimental process
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Porters Generic Strategies Strategy concerns two factors‚ deciding where you want a business to go‚ and deciding how to get there. According to Grant (2010) “A firm can achieve a higher rate of profit (or potential profit) over a rival in one of two ways: either it can supply an identical product or service at a lower cost‚ or it can supply a product or service that is differentiated in such a way that the customer is willing to pay a price premium that exceeds the additional cost of differentiation
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worked on different areas of businesses including: customer service‚ sales‚ supply chain management‚ accounting‚ finance and recruiting. Currently‚ I lead a family business as General Manager. But the experience I want to focus on is the “off-the-clock” one: volunteering. I have volunteered for many social causes for most of my life including: academic reinforcement in public schools; building emergency houses with TECHO Nicaragua; and most recently‚ I am leading a project to collect books and create
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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
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Strategy‚ Management and Leadership Individual Report 1 Business-level Strategy of Nestle Nestle is an international brand with a portfolio in almost every food and beverage category. The brand is consumed daily by a majority of people‚ from its confectionary to it dairy brands and on to it’s beverages. With around 8000 brands it is hard to stay away from them. The company shows it’s size when figures such as 468 factories spread over 86 countries are some statistics‚ with the company employing
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Experiment 16: 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
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History of Clocks and the Impact of Electricity on them. Introduction: In this poster we are going to show you the history and the development of the clock through time and how it has impacted society. We will also show how electricity has affected the development and effectiveness of clocks. Sun clock: One of the first clocks on record is the sun clock. Sun clocks basically work on the principle that the position of a stationary object’s shadow will be in the same place at a certain
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Symbolism Analysis: Gatsby’s Clock Have you ever wanted to turn back time and relive the past? In The Great Gatsby by F. Scott Fitzgerald‚ Fitzgerald tells a story of a man named Gatsby who was once poor and became wealthy in order to get Daisy‚ a girl who is a part of the “old money” society. He attempts to accomplish this goal by establishing a friendly relationship with Nick‚ who is Daisy’s cousin. Unfortunately‚ Gatsby’s goal of getting Daisy and reliving the past backfires and vanishes forever
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In The Death of Grandfather Clock‚ Lin Lane depicts the nagging effect that time tends to have by utilizing symbolism. In the first stanza‚ the poem expressly states‚ “I am quite annoyed by the ticking... By the ever-present clicking”. The poet explicates how the constant ticking stresses the limited time one has to fulfil one’s responsibilities and aspirations. In the second stanza‚ Lane expands on her point by wondering‚ “Must Grandfather Time command my life?” The poem uses the “Grandfather Time”
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