Laboratory Experiment No. 1: Common Laboratory Procedures Objective In this experiment‚ the objectives were to use a balance and measure the volume of the liquids. Theory In the experiment‚ three calculations were used. These are the density‚ relative error and the standard deviation. Density is refers to the mass (m) per unit volume (V) of a material and is often represented by the symbols d or ρ‚ where d = m/V. The density of an object changes with pressure and temperature. Second‚
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Experiment 4: Extraction and Chromatic Separation of Plant Pigments from Tomato Paste ABSTRACT In column chromatography a mixture is dissolved in a solvent and poured over a column of solid adsorbent then eluted with the same or a different solvent. This method is often used for preparative purposes; when a relatively large amount of the mixture and the components need to be isolated. The two main pigments in tomato paste mixture are the yellow-orange β-carotene and the red lycopene. The colors
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Maximum Cell Size & Diffusion – Ferris Shaw Research Question: How does the surface area to volume ratio affect the diffusion rate in agar cubes? Hypothesis: The rate of diffusion in directly related to the surface area to volume ratio of cells and is responsible for the efficiency of absorbing nutrients‚ oxygen‚ minerals etc. in the cell. This ratio is specific to cells as they require a ratio that isn’t big enough to take too long to receive the nutrients and oxygen or too small to
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ASSIGNMENT - Why is a cell microscopic? By Lachlan Bryant This research assignment will discuss why cells are usually microscopic in size‚ given that they need to be able to exchange material with their surrounding environment. The cell is highly organised with many functional units or organelles (Spurger).A membrane is a fluid mosaic which consists of proteins‚ lipids and carbohydrates which seperates the cell from it’s surrounding environment or subdivides a cell into specialised regions or
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Determination of an Electrochemical Series In electrochemistry‚ a voltaic cell is a specially prepared system in which an oxidation-reduction reaction occurs spontaneously. This spontaneous reaction produces an easily measured electrical potential which has a positive value. Voltaic cells have a variety of uses and you commonly refer to them as a “battery”. Half-cells are normally produced by placing a piece of metal into a solution containing a cation of the metal (e.g.‚ Cu metal in a solution
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Preface Most people have heard of the Common Core‚ but they may not know that it is now in use in 42 of the 50 states in the US. Now that the Common Core has been so widely accepted‚ it is as well-known as it is controversial. Since I was aware that there were many concerns about the Common Core‚ I wanted to know more about them. During the course of my research I hoped to discover a number of things. First‚ I wanted to know exactly what the Common Core is and some about its history. Second‚ I wanted
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of Common Man Common man term is coined by great cartoonist R K Laxman in his daily cartoon strip‚ "You Said It" in The Times of India. Over time‚ the common man has represented the hopes‚ aspirations‚ troubles and perhaps even foibles of the average Indian. Mr. Laxman once said of his Common Man‚ "I would say he symbolises the mute millions of India‚ or perhaps the whole world‚ a silent spectator of marching time." Most of us are common man and most of us would agree that being a common man
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Common Law Law developed through conclusions of courts and similar committees by the judges is known as common law‚ it is also known as case law. Common law binds upcoming decisions and it is the body of practice. Common law delivers compensation in monetarist value of the damages due to violation of contract and approves the legal owner of the property. Certain amount of money presented as compensation by a court for a breach or trot of agreement is known as damages‚ it is also famous as lump
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Do you know what Common Core has to really offer to students in the 21st century? Well it does not seem to be the best way of teaching students as it is insufficient‚ time consuming and has a difficult understanding. These three things will explain why common core is not the best method for students as well as for teachers of the 21st Century. Common Core is an insufficient method of teaching students the standards that they will need in order to finish high school. Since this program is being pushed
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Sources of common law I. Sources of the Common Law A. Court Decisions The principal source of positive law in the common law system is customary law. The common law system has some analogies to French medieval law: trial by jury‚ the binding nature of precedent. B. Statutes and treaties Statutes and treaties are the other source of law in the anglo-saxon world. However to be enforced even statutes and treaties must be ultimately interpreted by judges. Statutes are however controlling; that
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