"Determination of dissociation constant for a weak acid by using spectrophotometer" Essays and Research Papers

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    watered down‚ to complete this task a sample of commercial vinegar was tested twice using titration and an average was taken of the two samples to give a base line to compare the potentially tampered samples against. Introduction Vinegar is a solution made from the fermentation of ethanol (CH3CH2OH)‚ which in turn was previously fermented from sugar. The fermentation of ethanol results in the production of acetic acid (CH3COOH). The typical pH of vinegar ranges anywhere from 2 to 3.5‚ although shop-bought

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    Exploring Sulfuric Acid

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    concentrated sulphuric acid at the chemical plant where I work at as the Safety Engineer. In this report‚ I will explain what Sulfuric Acid is‚ the health risks and hazards associated with it‚ the safety precautions that should be taken and how the spill should be handled. Sulfuric Acid‚ H2SO4‚ also commonly known as battery acid or vitriol‚ is one of the top products in the chemical industry‚ with 40 million tons produced annually in the U.S. It is a colourless‚ odourless and oily mineral acid that is soluble

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    South African. His activist life likens him to a crusader for his country. A knight on duty for a mistress; and this has so often appeared in his poetry. He loved South Africa deeply and did everything to win its freedom. In this poem‚ “It Is the Constant Image of Your Face”‚ he closes the first stanza by saying “my land takes precedence of all my loves”. This was his passion. While he was in prison‚ news broke that South Africa had been banned from the 1964 Tokyo Olympics as he had campaigned for

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    Macbeth In the play‚ Macbeth‚ weak actions were shown plenty by Lady Macbeth. Guilty of many murders along with her husband Macbeth‚ It showed the reader’s Lady Macbeth lacking in strength by the actions she takes. Lady Macbeth is weak because she doesn’t have the strength to kill King Duncan‚ hiding behind the guilt of killing people and the thought of her sleeping father during the murder of King Duncan. During the beginning of the play‚ Lady Macbeth had a set idea to have her husband‚ Macbeth

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    The Determination of Keq for FeSCN2+ Joy Muthami February 12 2014 Introduction: The purpose of this lab was to calculate the equilibrium constant for the reaction of iron (III) ions with thiocyanate ions. The materials were first acquired then with the groups in the class each team was given a test solution to create and acquire information from then all the information was put together in order to save time. Specifically the group created test solutions #8‚ #9‚ and #10. Once the solutions were

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    Lennie and Crooks are two weak characters in of Mice and Men. In the tough working environment which was America’s 1920s‚ the time of the Great Depression‚ there was no place for mentally or physically insufficient people‚ it was survival of the fittest and “every man for himself.” We learn of Lennie’s non-existent capacity to care for himself early on in the novel. Even at the very start of the novel we see that “The two men walked in single file down the path‚ and even in the open one stayed behind

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    Gravimetric Determination of Calcium ABSTRACT Determining the mass of a pure compound is a method of a gravimetric analysis. One of the gravimetric analyses is the precipitation; it is a method of separating the analyte from the unknown sample as a precipitate where it will be filtered and converted into a known composition that can be weighed to determine its mass (Skoog et al‚ 2013). Determining the mass of calcium by using gravimetric analysis was the objective of the experiment. A 25 mL

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    the amount of discrimination that it does‚ adding another way to subliminally segregate people would only make it worse. This question‚ “If we were able to exclude the eccentric‚ the different‚ the misfits‚ and the weak‚ what would happen to society?” is said as if the different‚ weak and misfits were not already excluded. Throughout all of history‚ the aforementioned of a community have been looked down upon by the rest of society. Even today the world struggles to accept these people. If this discrimination

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    the President’s Council on Bioethics published the ‘Controversies in the Determination of Death’. Within the publication‚ the Council discusses the various criterions that need to be met in order for death to be declared. The criterions include those of a neurological level‚ which have been observed for over three decades. Although there have recently been objections to the neurological criterion in regards to death determination‚ the Council decided to maintain the criterion. In keeping the neurological

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    Technology: the application of scientific discoveries to the development and improvement of goods and services Operations management requires: both knowledge of the facts and how to interpret that info in order to produce and deliver Requires constant improvement: due to competition in the marketplace and advances in technology Good process design is: customer driven What questions> What type of process is best suited that will fulfill our customers needs What is the goal in selecting

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