A buffer is an aqueous solution that allows resistance to significant change in pH when small amounts of strong acids or base are added to it. (Boundless‚ 2015) This is usually formed when a weak acid is added to a salt of its conjugate base. (Chemicool.com‚ 2014) When an Alka Seltzer tablet is dissolved in water‚ a buffer is formed when the weak acid citric acid is present with sodium citrate (citrate ion) the conjugate base (Buffer Balancing Acts Buffers‚ 2009) "Na3C3H5O7 (aq) + 3 HCl (aq)
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three black circus workers were attacked and illegally lynched by a mob in Duluth‚ Minnesota. Those innocent deaths led by false accusations supported with no evidence‚ fear and motives can relate to those wrongfully and legally hung in The Salem Witch trials. Even though the trials took place three centuries ago‚ similar unjustified deaths and persecution of people based on fear and social instability continued on to the 20th century. In the year 1920‚ America was in the midst of a violent period
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Witches Float Muslims Don’t Muslim’s who face racial discrimination daily‚ are not protected by the Racial Discrimination Act Toby Bolt insist you continue reading. (Please I need my job! T^T) Witch hunts are back! In fact‚ they never left. In today’s society witches are not great bomb fires or tested as flotation devices‚ instead they are deported. But even witches have human rights and protected by the law‚ right? Photo: Q&A debate between Yasmin Abdel-Magied and Jacqui Lambie Apparently
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Introducton : The most common macromolecules found in living organisms are carbohydrates ‚ lipids‚ proteins and nucleic acids. Briefly‚ the meaning of macromolecules is that they normally contain two or more molecules in them and their main functions are to store energy‚ information and much more. Most foods are known to be combinations of macromolecules. While some of these compounds can be detected by taste tests‚ many cannot. Scientists then use certain tests to determine the presence of
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the four seasons and from there to the nature of human existence. Taken literally‚ the poem is essentially a very eloquent description of the four seasons of spring‚ summer‚ autumn and winter‚ applied to the "mind of man" or the human demeanor. If interpreted in a more metaphorical sense‚ the poem takes on a distinctly different meaning. Keats opens the sonnet by establishing the fact that "There are four seasons in the mind of man". This could be taken to mean that this ’changing of seasons’ affects
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Week 10: Oxidation and Reduction Reactions: The Reactions of Copper Data: Part I: Preparing a solution of copper (II) nitrate Initial mass of copper wire: .520g Mass of copper wire after vigorously scouring: .518g Observations of Copper (II) ribbon mixed with HNO3: Solution turned green. Thick brown gas formed. Copper (II) bubbled vigorously. Cu (II) dissolved‚ solution appeared green/blue. After the addition of H2O a blue crusty precipitate formed. Part II: Synthesis of solid copper
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The Lion‚ the Witch and the Wardrobe is a wonderful example of a fictional fantasy. It is adventurous‚ full of magic‚ talking animals‚ a witch‚ mythical creatures‚ and not to mention children entering another world through a wardrobe. The author was very descriptive when talking about what the characters look like‚ their behaviors‚ and each setting that the characters were in. So much so that it could be easily pictured by the reader exactly what they characters were doing and their surrounding at
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------------------------------------------------- Hydrochloric acid From Wikipedia‚ the free encyclopedia (Redirected from Muriatic acid) Not to be confused with hydrogen chloride. Hydrochloric acid | | | | Other names[hide] * Muriatic acid[1] * Spirits of salt[2] | Identifiers | CAS number | 7647-01-0 | ChemSpider | 10633809 | UNII | QTT17582CB | EC number | 231-595-7 | ChEMBL | CHEMBL1231821 | ATC code | A09AB03‚B05XA13 | Properties | Appearance | Colourless
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Part A: Table 1: Fractionation of amino acid Fraction No | Response to Ninhydrin test(level of blue colour change) | Response to Sakaguchi test (colour change) | 1 | X | yellow | 2 | Dark blue | yellow | 3 | Dark blue | Pale orange | 4 | Blue | Pale orange | 5 | Pale blue | Pale orange | 6 | Blue | Pale orange | 7 | Pale blue | Pale orange | Discussion Part A In the separation and purification of a single protein or amino acids‚ a solution containing the desired analyte
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mansion and they wanted to explore it.pg.5.Lucy saw a mysterious wardrobe and went inside it.pg.5.When she went inside it‚it started to get cold.Lucy met a faun named Mr.Tumnus.He took her to his cave and had tea with her.pg.16.The theme of The Lion‚The Witch‚and The Wardrobe is compassion and forgiveness. In my opinion‚Lucy was the most compassionate because she forgave Mr.Tumnus for the mistake he has made.In the story‚pg.20‚it stated‚’’No‚’’said Lucy.’’I’m sure you wouldn’t do anything
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