unknown solutions were determined with the use of colorimetry using McIlvaine’s buffer solutions varying in proportion of its constituents (disodium phosphate and citric acid). These buffer solutions were subjected to the addition of corresponding pH indicators and the variation of colors depending on its pH level was used as standards. At the end of the experiment‚ the colors of the unknowns were compared with the standard buffer solutions and then calculated to obtain an estimation of their pH or acidity
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the solution eluted with the pH 3 buffer reveals that Alanine was eluted first with the pH 3 buffer. The solution eluted with the pH 6 buffer had two Rf values of .43 and.62‚ revealing that the amino acid eluted with it was phenylalanine with another concentration of alanine. Finally‚ the fraction eluted with the pH 11 buffer had a Rf of .8‚ which tells us that lysine was eluted with the pH 11 buffer. The TLC separation of the elution with the pH 3 and pH 6 buffer were a little unclear‚ likely due
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crushing and broken‚ is an efficient‚ energy-saving equipment‚ sand gravel‚ sand making energy-efficient than traditional‚ is the world’s advanced system sand equipment. Of the three main types of rod mill‚ overflow‚ end peripheral discharge‚ and center peripheral discharge only the overflow mill is in common usage. Wet grinding rod mills are normally used in the mineral processing industry. Dry grinding is used in some areas; however‚ it is confronted with problems and should be avoided except where
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EFFECTS OF FLOODS Floods are mostly caused by the intensive rainfall that incereases the water level dramatically and results excessive water overflow that might have some devastating effects on te endangerd areas. This unexpected hazard might have a significant impact on both economy and human beings. Firstly‚ an overflow of the expanse of water has a considerable impact on the economy of the country. The submergence of the land‚ results in a destruction of buildings and roads which ‚ in
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negative log of an ion atom (pH= -log10 [H⁺]) (Fultz‚ 2013). When a substance has an acid or base added it to it‚ it causes it to become more acidic or more of a base. If the acids or bases don’t cause much change in the pH‚ it is known as a buffer. A buffer is a compound that minimizes the pH fluctuation in the fluids of a living organism (Brooker et. al‚ 2013). In this organized experiment‚ we will be measuring the effects an acid and base has an effect on nine unknown solutions. Drops of an acid
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Deionized Water Deionized Water Amylase Amylase 6 7 8 Reagent 2 Starch Starch Starch Deionized Water Starch Reagent 3 pH 7.0 Buffer pH 7.0 Buffer pH 7.0 Buffer pH 7.0 Buffer Treatment Boiled Frozen None None Time 60 60 60 60 Temp. 37 37 37 37 IKI + - Benedict’s ++ ++ - pH 7.0 Buffer None 60 37 + - Maltose pH 7.0 Buffer None 60 37 - ++ Starch Starch pH 2.0 Buffer pH 9.0
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2Na+ & (HCO3)-1 & OH- neutral salt: NaCl & H2O => Na+ & Cl- & H2O Module 5- Buffers 15. An acid contributes a surplus of hydrogen ions to a solution. A base contributes a surplus of hydroxide (OH) ions to a solution. 16. Buffer solutions are solutions that resist change in Hydronium ion and the hydroxide ion concentration (and consequently pH) upon addition of small amounts of acid or base‚ or upon dilution. Buffer solutions consist of a weak acid and its conjugate base (more common) or a weak
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Table of Contents 1.Introduction 2. Literature survey 3.Formation of the Problem 4.System specification 5.Design of solution 6.Implementation 7.Results and Discussions 8.System testing 9.Conclusion and future scope 10.References INTELLIGENT AMBULANCE FOR CITY TRAFFIC AND GSM TO SENT THE STATUS OF THE PATIENT TO THE HOSPITAL ABSTRACT: The main aim of this project is develop an intelligent ambulance which will reach the hospitals without any problem in heavy traffics. INTRODUCTION: This particular
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Experiment 4: Enzyme Kinetics. Results/Discussion Week 1 Part A: Table 1. Enzyme activity for each assay of 4-nitroaniline formation. Rate of 4-nitroaniline formation Name of trial Abs/sec Abs/min M/min mol/min µmol/min #1 0.00003 0.0018 2.05x10-7 2.15 x10-10 2.15 x10-4 # 2 0.00010 0.0060 6.81x10-7 7.15x10-10 7.15x10-4 # 3 0.00020 0.0120 1.36x10-6 1.43x10-9 1.43x10-3 # 4 0.00030 0.0180 2.00x10-6 2.10x10-9 2.10x10-3
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because using cost-distance it is near to impossible to acquire the same effect as with the buffers. Another asset of the buffer method is that‚ after its creation‚ the buffers can be used or transformed easily into something else to answer a slightly different question as at the moment the buffers are rather bare‚ but it would be quite easy to transform them into multiple buffers‚ or even use the buffer zones as a start for other analysis like the
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