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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5 Zebra Plant 4.2 6.1 7.6 3.2 1. Define transpiration. The process by which moisture is carried through plants. 2. Based on the results from your lab‚ how might your results differ if you direct the air flow onto the upper surface of the leaf versus the lower surface? Why? 3. Did any of the environmental factors (heat‚ light‚ or wind) increase the transpiration rate more than the others? Why? The transportation was increased mostly by the fan: 6.4 As it increased the respiration
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Coffee Bean & Tea Leaf Improves Retention Using Blanchard’s Situational Leadership® II CUSTOMER FEATURE: Typically‚ an annual corporate growth rate of about 25% would be cause for celebration. But‚ when that type of rapid growth is coupled with extremely high employee and management turnover‚ the festivities are short-lived. The Los Angeles-based Coffee Bean & Tea Leaf‚ one of the largest privately owned‚ familyrun coffee and tea companies‚ was facing this very dilemma in 2001 when Michael Serchia
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on the number of stomata of a leaf.” Research Question: How do differing leaf heights affect the number/density of stomata of a leaf? Hypothesis Stomata are pores‚ typically found under the leaf (lower epidermis)‚ that control the gas exchange of transpiration‚ where water vapor leaves the plants‚ and carbon dioxide enters. I predict that the stomatal density on high leafs is higher than on low leafs. During photosynthesis the chloroplasts in the leaf cells synthesize ATP from ADP as
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mobile phase can be liquid‚ gas‚ or supercritical fluid. How Does Chromatography Work? Chromatography is a surface effect. It works by first starting off with an unidentified liquid being injected into a column. As the chemicals in the liquid move down the column‚ they separate depending on their physical and chemical attributes‚ such as speed and weight. To easily picture the process‚ the example will pertain to a paper chromatography process in which the liquid is moving over the paper‚ separating
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Orange Leaf Froyo 5 C’s Customer: Orange Leaf has a wide variety of customers‚ ranging from very young children‚ all the way up to the elderly. Anyone who enjoys a delicious treat can be a customer at Orange Leaf! Company: The Orange Leaf Company’s mission statement is “We work hard to make the best froyo you’ve ever tasted and are committed to becoming a valuable partner in your community.” Orange Leaf is unique in that they not only strive to be the best frozen yogurt company around‚ but their
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Gas Chromatography: Purifying alcohol Introduction The goal of this lab is to understand the principles of chromatography by purifying alcohol using fractional distillation. Running standards with gas chromatography we were able to see and calibrate our data to find not only how much ethanol our alcohol attained but also what a mixed unknown sample contained. Chromatography is a way of being able to separate substances in solution that can help not only identify the analytes (the studied
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A backpack leaf blower completes a supertask of clearing and accumulating flotsam and jetsam from yards. With high limit motors‚ a leaf blower backpack can tidy up a yard covered with debris and jetsam inside a small amount of the time. A leaf blower unit likewise lets in the individual running it to transport easily. Backpack leaf blowers come in either electric controlled or fuel controlled styles. Leaf blower backpacks are intended to offer solace when being used to chip away at their grass for
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Background Information and Research Paper chromatography uses selective adsorption on a strip of paper. It is used for separating and identifying mixtures that are or can be colored‚ especially pigments. This can also be used in secondary or primary colors in ink experiments. Is it used for Contaminants in rainwater‚ Analysis of narcotics‚ and Detection of substances in urine. Purpose • The purpose of this lab is to see the separation of dye on the candy. Data and Observations Marker Color
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Chromatography Analysis of Black Pens to Determine Unknown Sample Purpose: Paper chromatography was performed on five different black pens‚ using four different solutions to determine which would be most appropriate to use on an unknown sample. Paper chromatography was then performed on the unknown sample to identify which pen was used to create it. Procedure: Each person participating in the analysis was assigned one solution to work with: V. Temple used distilled water‚ D. Sellers used
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