Ink Chromatography Lab Background Information Paper chromatography is an analytical method that is used for separating and identifying mixtures of substances into their smaller parts. Paper chromatography works because the ink used contains several dyes (pigments) that when place on porous paper are dissolved in a solvent by capillary action. When the pigments (solutes) are dissolved in the solvent (water & alcohol mixture) they move through the paper at different rates depending on their
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“The Bad Seed” There were many scenes in the movie The Bad Seed where it showed visual examples supporting the Freudian theories. It especially shined on the character Rhoda’s motives for her behaviors. According to Freud’s theory‚ ego is when you are out of your childhood level and actually take in consideration for other people more than yourself. However‚ Rhoda does not display any ego in herself as she does not give any consideration for other people in reality. The Freud’s theory also
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Thermochromism Thermochromism refers to the phenomenon of color changes by the agency of heat. Obviously‚ the color changes are made possible by the temperature-induced chemical or physical changes of materials incorporated into the inks. Sometimes‚ the color change occurring at a temperature is permanent‚ and at other times the original color can be regained on cooling. Accordingly‚ we have an irreversible or reversible thermochromic system. The required chemistry can be adopted based
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Angela B. Camitan‚ Honey Jane T. Dela Cruz ABSTRACT The project aims to test the feasibility of extracts from the adelfa plant as pesticide. The leaves were cut from the stem and then subjected to steam bath. Soxhlet apparatus was used for extraction; methanol was used as solvent. The extract was then distilled‚ and diluted into 4 containers to obtain concentrations of 100%‚ 75%‚ 50% and 25%. There were 6 set-ups‚ each with 10 cockroaches‚ one positive control set-up‚ in which the group
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* Ink Made from Tea bags * 1. Background of the Study Tea is created by using the leaves of a plantknown as Camellis sinensis. This plant is native tomainland China‚ South and Southeast Asia‚ but it istoday cultivated across the world in tropical andsubtropical regions. It is an evergreen shrub orsmall tree that is usually trimmed to below 2 m(6.6 ft) when cultivated for its leaves. It has astrong taproot. The flowers are yellow-white‚ 2.5-4cm (0.98-1.6 in) in diameter‚ with 7 to 8 petals.
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Cytosine‚ Guanine‚ Adenine and Thymine. (1) Wheat germ comes from wheat seeds. The ’ germ ’ is the embryo‚ which is the part of the seed that can grow into a new wheat plant. (1) Aim: To extract DNA from Wheat Germ cells‚ and learning the DNA extraction process. Hypothesis: Each step of the process will help in a certain way to extract DNA‚ until we are finally successful in the end. In the wheat germ extraction‚ the ethanol will be able to separate the DNA‚ and it will float between
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The seeds of discouragement in work with young people INTRODUCTION Discouragement by definition is the act of or instance of being discouraged‚ the state of being discouraged or something that discourages. In other words it is simply the feeling of despair in the face of obstacles. Young people may become defiant or hard if seeds of discouragement are sown into their lives especially during their childhood years. This essay will seek to demonstrate how discouragement can be used positively by a child
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THE POTENCY OF TALISAY terminalia catappa AS FABRIC DYE By: Charlene Angelica B. Buenvenida Chapter I INTRODUCTION Dyes have become part of daily living. What’s great about dyes is that they give variety to everything. Even the earliest humans used dyes to put color into their worlds‚ and they even used the most peculiar sources of the colors. Since then‚ dyes have dominated different kinds of industries. Before‚ dye manufacturers were only able to produce one color at a time. But
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In order to fully understand chaplaincy of today one must first know where it came from. Much of the duties of chaplains today find their beginning in the Roman armies of the first through sixth centuries. This period of pre/early chaplaincy is what could be considered the foundation for current day chaplaincy. In the first century religion was mainly a function of the state‚ usually performed by military commanders or the Emperor himself through a variety of ceremonial acts. As Ralph W. Mathisen
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Research question/Aim Extract copper from copper oxide by reduction using butane gas Hypothesis The butane gas will reduce the copper oxide and leave behind pure copper. This will allow us to find the empirical formula of the copper oxide as well as the masses of oxygen and copper Variables Dependant variable The dependant variable will be the reduction of the copper oxide which will be calculated at different temperatures. Independent variable The independent variable here
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