EXPERIMENT 2: COMMON-ION EFFECT AND BUFFERS MARVILE REA R. FERRER1 1DEPARTMENT OF MINING‚ METALLURGICAL & MATERIALS ENGINEERING‚ COLLEGE OF ENGINEERING UNIVERSITY OF THE PHILIPPINES‚ DILIMAN‚ QUEZON CITY 1101‚ PHILIPPINES DATE SUBMITTED: DECEMBER 13‚ 2012 DATE PERFORMED: DECEMBER 07‚ 2012 ______________________________________________________________________________________________________________ INTRODUCTION Monitoring the pH range of a laboratory reaction or a process is very
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Osmosis Osmosis is just a special case of diffusion - where water diffuses through a membrane which has different concentrations on either side. Permeable means "allows anything to pass through". Membranes in cells allow small molecules (water) to pass through‚ but prevent bigger ones from passing. This is called "selectively permeable". Take a look at the following animation; If a selectively permeable membrane separates the two solutions‚ water moves through it in both directions at
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is set to be progressing by leaps and bounds in the matter of economy but this progress is low sided that the net results is the sharp increase in the number of unemployed. Population of our country India is increasing day by day. It is the second highest populous country in the world. Today ‚we have over 1.15 billion people in our country and so is the increasing unemployment rate. Today‚ we have both educated and uneducated unemployed people. We have skilled and unskilled unemployed youths both in
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architecture falls under the category of art has always been highly debated and argued by academics and philosophers who have contributed valid reasoning as to why architecture is the highest form of art while others provided rational reasoning as to why it is not. In this essay‚ I will aim to construct a logical argument which aims to understand the theories of philosophers who had an significant influence on the subject‚ from the first definitive discourse on ‘fine arts’ by Charles Batteux to the deontological
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and against using a buffer stock scheme to stabilize the price of a commodity such as sugar or tin. S Buffer stock schemes seek to stabilize the market price of agricultural products by buying up supplies of the product when harvests are plentiful and selling stocks of the product onto the market when supplies are low. An example of a buffer stock scheme is the international coffee agreement. The international coffee agreement is an international commodity agreement‚ which aims to achieve a reasonable
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The reason why I think this could be a limitation is because each solution has an extreme acidic pH level like 1 or 2. As a result‚ I speculate the supreme acidity of the solution could negatively affect the pH measurer that could make it lose the originality to measure the right pH level for later product. Hence‚ it is crucial to have the pH measurer calibrated in a buffer solution so that the measurement can have a high accuracy overall. Thirdly‚ when measuring the enthalpy change
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Myrtle Freedom under threat: PH‚ 2rd deadliest country for Journalists Journalism has long been a high-risk profession‚ many journalists and reporters have put their lives on the line for a story. Journalists often have to go through extreme measures just to get information. Intensive research‚ live coverage and interviews are being demanded more and more by the public and in order to get such vital information‚ being on the scene is necessary. According to Committee to Protect Journalists (CPJ)
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premiss a statement which has the same meaning as the conclusion. A. The least convincing kind of petitio principii is the repetition of the same words in the same order in both premiss and conclusion.. Generally‚ such an argument would not be misleading and would only be given in unusual circumstances‚ e.g.‚ the speaker is very tired‚ talking to a child‚ or talking to a subordinate. Two examples follow. 1. "Dear Friend‚ a man who has studied law to its highest degree is a brilliant
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determine if the reaction rate changes in response to a variation of acidic‚ neutral‚ and basic solutions. The experimental results indicated that the basic/high pH solution has a faster rate of reaction in the solution. Introduction Enzymes are proteins that catalyze and convert molecules into combinations of other molecules which is necessary for the functions of human life. These enzymes are affected in the presence of a high concentration of Hydrogen ions resulting in a disruption of the
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SCI103 Phase 1 Lab Report Title: Measuring pH Levels Instructions: Enter the Virtual Lab‚ and conduct the experiments provided before going out into the field for additional research. Please type your answers. When your lab report is complete‚ submit it to the Submitted Assignments area of the Virtual Classroom. Part I: Answer the following questions while in the Phase 1 lab environment. Section 1: You will be testing 4 known solutions for pH levels using a standard wide-range indicator
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