you to compare quantitavely the glucose concentration in fresh samples of orange‚ lemon and grapefruit juice. Aim: The aim of this investigation is to produce a set of data which will enable comparison of the glucose concentrations of orange‚ lemon and grapefruit juice. Research: Benedict’s Reagent is a mixture of sodium compounds and copper sulphate. The copper ions are reduced by fructose (a reducing sugar) to form copper oxide‚ thus turning it from blue to a brick red/orange precipitate
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Out of clutter‚ find Simplicity. From discord‚ find Harmony. In the middle of difficulty lies Opportunity. ~Albert Einstein A determined person doesn’t find it hard to succeed; they find it hard to stop trying." --- Allen Steble The entrepreneur is essentially a visualizer and actualizer… He can visualize something‚ and when he visualizes it he sees exactly how to make it happen. ~Robert L. Schwartz "Friendship is born at that moment when one person says to another: "What!"
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Mass Determination of Ca‚ Fe and Zn in a multivitamin using Atomic Absorbance Spectroscopy (AAS) and X-Ray Fluorescence Spectroscopy (XRF) ABSTRACT: The purpose of this project was to determine the amount of calcium‚ iron and zinc present in an over the counter multivitamin. This mass was determined using atomic absorption spectroscopy (AAS) and X-ray fluorescence spectroscopy (XRF). For both analytical techniques‚ the method of standard additions was used to compensate for matrix effects.
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Experiment 2: Estimation of protein concentration Introduction Protein assays are designed to measure the total protein in a solution. Protein assays are quantitative if the protein to be assayed is available in sufficient quantity such that one is able to use it to create a standard curve. If this cannot be achieved‚ then a standard protein‚ such as albumin‚ may be used for a standard curve with the understanding that the results on the unknown protein are semi-quantitative. Since most proteins
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Concentration of a Solution: Beer’s Law The objective of this experiment is to determine the concentration of an unknown copper sulfate solution. You will be using the Colorimeter. In this device‚ red light from the LED light source will pass through the solution and strike a photocell. A higher concentration of the coloured solution absorbs more light (and transmits less) than a solution of lower concentration. The Colorimeter monitors the light received by the photocell as either an absorbance
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Quantum Mechanics V H Satheeshkumar Department of Physics and Center for Advanced Research and Development Sri Bhagawan Mahaveer Jain College of Engineering Jain Global Campus‚ Kanakapura Road Bangalore 562 112‚ India. vhsatheeshkumar@gmail.com October 12‚ 2008 Who can use this? The lecture notes are tailor-made for my students at SBMJCE‚ Bangalore. It is the second of eight chapters in Engineering Physics [06PHY12] course prescribed by VTU for the first-semester (September 2008 - January 2009)
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The Power of Concentration By Remez Sasson When I was a child‚ I saw how a magnifying glass could burn a piece of paper‚ when the rays of the sun were focused through it. The fire could start only when the sun’s rays were concentrated to a small point. When the magnifying glass was moved too far away or too close to the paper‚ the rays were not focused enough and nothing happened. This experience describes vividly the power of concentration. This power can be described as focused attention. It
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THE EFFECT OF CONCENTRATION ON REACTION RATE INTRODUCTION • Concentration is one factor which has an effect o the rate of a chemical reaction. In chemistry we describe concentration in terms of the number of moles of a substance there are in every cubic decimetre (litre) of solution‚ written as moles.dm-3 of M for short. • In this experiment you will find out how increasing the concentration of the acid solution changes the rate of the reaction between dilute hydrochloric acid and magnesium
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managed to escape from Germany’s wrath. Others went hiding in Germany‚ hoping that the Allies would invade Germany in time before the Nazis find them. During all this‚ concentration camps were being made. A concentration camp is a place where large numbers of people‚ especially political prisoners or persecuted members of a minority‚ are imprisoned in a small area with inadequate facilities‚ sometimes to provide forced labor or to await mass execution. Many of these concentration camps later became
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Level 2 2010/11 ‘Seller concentration levels are of interest on both theoretical and public policy grounds’. Discuss. Market structure plays an important role in any industry. Examining the market structure is essential for firms to perform well and behave rationally. The key characteristics of market structure include the number and size of firms‚ the existence and height barriers to entry and exit‚ and the degree of product differentiation. Seller concentration refers to the number and level
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