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    Trend The constant, 0 v/v % hydrogen peroxide solution, did not react with the catalase, therefore it was recorded as 300+ seconds and had a reaction rate of 0 seconds-1. The 0.1 v/v % hydrogen peroxide concentration recorded a reaction rate of 0.17 seconds-1. The 0.2 v/v % hydrogen peroxide concentration, recorded a lower reaction rate than the 0.1 v/v% at 0.14 seconds-1. The 1 v/v % hydrogen peroxide concentration recorded higher at 0.49 seconds-1. The 3 v/v % hydrogen peroxide concentration…

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    Clean Flame Test Wire

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    A clean flame test wire was inserted into 0.2 M NaCl and also placed on the flame reputedly. A bright yellow persistent flame was a positive test of sodium being presented, then repeat the same instructions for the unknown ion. After the flame test wire was clean 0.2M KCl was dipped into the flame resulted a lavender color after several trials as well as the unknown solution. 10 drops of 0.1M Ca(NO3)2 in a test tube and 2-3 drops of 1M Na2C2O4, a white precipitate of calcium was present. The…

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    Dianne Termine Honors Chemistry Period 5 Group: 22 Topic: Dissolving Alka-Seltzer in Different Liquids Due Date: September 30, 2016 (2) Background Research The topic of this experiment is investigating and researching whether different properties in different types of liquids affect the amount of time it takes for an Alka-Seltzer to dissolve. The independent variable would be the amount of liquid being used to dissolve the Alka-Seltzer pill. The dependent variable would be the amount of…

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    Dentin Adhesion Essay

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    nanomechanical retention which is due to polymerisation of hydrophilic monomers around acid exposed collagen fibres.1 The entanglement of these monomers within the exposed collagen fibres gives rise to the so called Hybrid layer , which is also referred as Resin infiltrated Dentin layer.2 The presence of hybrid layer is important for attainment of a leakage free interface between the cavity walls and resin composite.2 After acid etching, the demineralized collagen matrix is present in a…

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    Cyanoethoxy Research Paper

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    moiety was also protected as its O-Boc enol carbonate (Figure X.X.X). Transient in situ O-silylation facilitated the preparation of bis-N-Boc nucleosides from unprotected sugars. This strategy allows the protection of nucleosides with a base-stable and acid-labile group suitable for the preparation of base-sensitive oligonucleotides as well as for further manipulation. However, the utility of this diBoc carbamate protection is yet to be explored in oligonucleotide…

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    Buffers Lab Report

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    buffer solutions to sustain the structure and activity of biological components such as DNA, RNA, proteins, carbohydrates, and lipids. Buffer solutions are remarkably resistant to pH changes and generally consist of a weak acid and its conjugate base or a weak base and its conjugate acid. In the laboratory, artificially made buffers are often used to help maintain a biological system at the proper pH. A laboratory buffer should be inert in the system being studied. For example, Tris buffer is…

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    2.8.4 Properties The application of carrageenan as food additive depends on its performance such as forming thick solution or gels. For example, κ− carrageenan forms strong and rigid gels with potassium salts, forms brittle gels with calcium salts, clears gel with sugar addition, and exhibits syneresis. On the other hand, ι− carrageenan forms elastic gels with calcium salts, clears gel with no syneresis, and creates a gel that is freeze/thaw stable, while λ− carrageenan is not gel-forming but…

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    Alkaline Hydrolysis Essay

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    the temperature at a range between 25-55 °C (Pasupuleti & Braun, 2010). During alkaline hydrolysis of proteins, some amino acids like serine and threonine are damaged during alkaline hydrolysis, however, tryptophan remains intact. Also, this process causes racemization of amino acids, by modifying its structure and converting L-amino acid in its isomeric forms D-amino acids (Wisuthiphaet & Kongruang, 2015). Disulphide bonds are also fragmented with loss of cysteine, serine, and threonine and…

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    Lipids In Milk Lab Report

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    combined with an organic mixture of CHCl3/MeOH, to isolate the lipid layer. By centrifuging the organic solvent with milk the heavy lipids sink to the bottom while the water layer which contain water soluble carbohydrates, peptides and small amino acids float to the top. Since the organic solvent had low boiling points the lipids from the organic layer were easily obtained by evaporation. Methods Refer to page 1.2-1.3 in the BCEM 341 Manual Lab 1: Lipids. [1] Results Refer to the attached…

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    The synthesis of Aa-g-poly(MAA) involve the optimization of various reaction conditions like initiator concentration, monomer concentration, crosslinker concentration, solvent concentration and pH. After the optimization of various reaction parameters the replications were carried-out in triplicates for the reproducibility of the results and statistical of the results obtained. It was performed using the Statistical Package for Social Science (SPSS) version 10. Statistical results of the…

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