Determining the concentration of red dye #40 in an unknown solution Introduction: White light is composed of many different wavelengths of light combined together. A spectrophotometer is an instrument that shines a single wavelength of light of a known intensity into a solution and then measures the intensity of the light exiting the solution. If a solution contains
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Candy Chromatography: What makes those colors? The point of doing this project is to use paper chromatography to see which dyes are used in the coatings of your favorite colored candies. Chromatography is a technique for separating mixtures. Chromatography can be used to separate specific components from a complex mixture‚ based on molecular size or other chemical properties. It can also be used to identify chemicals‚ for example crime scene samples like blood‚ drugs‚ or explosive residue. Highly
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Candy chromatography My experiment is called candy chromatography. This project is mainly about the colors that are mixed with other colors to make candy markers Koolaid and much more. I think that only the color of the candy is going to show up on the coffee paper. I think that threw the entire experiment the color in the candy is going to show up the entire time. I think this is going to happen because most of the colors are solid colors. The material and equipment used was a sample of candy
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Names:____________ Date Performed:_____ Experiment No:______ Score:_____________ AZO DYES PREPARATION INTRODUCTION AND OBJECTIVES The preparation of azo dyes is a standard reaction in an Organic Chemistry lab. Its adaptation to a parallel synthesis format is straightforward. Since the dyes vary widely in color‚ the diversity of this parallel synthesis becomes obvious. It includes techniques on diazotization and electrophilic substitiution. The experient belo is made to allow studens to
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ARTICLE TRADITIONAL DYE PLANTS OF MANIPUR Sanjeev Rana Knitwear Department‚ National Institute of Fashion Technology Abstract Manipur is one of the richest states in plant biodiversity in the North Eastern states of India. Different ethnic groups‚ residing in Manipur before the introduction of the chemical dyes into the state‚ used the dyes extracted from the plants. Women in Manipur practice dyeing using varieties of plant leaves‚ flowers and tree barks. The natural dyes were obtained from
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What is chromatography- Chromatography is the separation of mixture by passing it in solution or suspension or as vapor. It’s a technique for separating mixtures into the components this needs to happen in order to do the 4 things analyze‚identify‚purify‚quantify. Many scientist use this to do the 4 steps. When analyzing its used to examine the mixture and to find out the relation with one another. In purifying you need to seperate or take away and put it by itself for further study. In identifying
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Purpose: The purpose of this lab is to find the amount of blue dye #1 in the blueberry pomegranate gatorade. Procedure: We created dilutions using stock solution(10mL stock/0 mL water‚ 8mL/2mL‚ 6mL/4mL‚4mL/6mL‚ 3mL/7mL‚ 2mL/8mL‚1mL/9mL‚ 0mL/0mL). Before we put each dilution in the SPEC 20‚ we put water in a cuvette and put it in the SPEC 20 so we could zero out the percent transmittance. We collected the percent transmittance of each dilution using the SPEC20 with a wavelength of 630nm.
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Chromatography of Commercial Analgesics Using the thin layer chromatography the major components of a commercial analgesic tablet will be indentified and purified. The active ingredients of the analgesic used were characterized by comparison with chromatograms of aspirin‚ acetaminophen‚ ibuprofen‚ mefanemic acid‚ and caffeine through the use of UV chromatography then the Rf value was calculated for each solvent. INTRODUCTION In this experiment‚ thin-layer chromatography (TLC) will be used
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unknown compound. In this experiment‚ chromatography and titration were performed to identify the unknown amino acid. Within experimental error‚ the results were consistent with the reference literature cited in this report. Experimental Thin Layer Chromatography The amino acid standards used in this experiment were Alanine‚ Glycine‚ Serine‚ and Histidine. These standards and the unknown were separated by performing a method of chromatography. Thin layer chromatography (TLC) was performed by using a mobile
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Fermented foods are made by the partial oxidation of sugars‚ or sometimes other organic molecules‚ in a food product. The difference between this and the normal cellular respiration is that the electron donor from the electron transport chain is an organic compound rather than oxygen. One challenge for producing fermented foods is the pH levels of the food. Bacteria have different optimal pH levels. Therefore‚ as pH changes due to fermentation different bacteria will begin to ferment the food. For example
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