Spencer Purpose The purpose of this experiment was to construct a Beer’s Law Plot‚ determine the concentration of a sample using the Beer’s law plot‚ and to determine the concentration of Blue Dye #1 in a commercial product using visual Colorimetry. Procedure This lab consisted of calculating %T of given data and constructing a Beer’s Law plow. Secondly‚
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everything on our list‚ then realized that once people find out about the murder‚ our pictures will be put in newspapers everywhere. I grabbed some hair dye and some scissors even though it was expensive‚ paid for the supplies‚ and walked out of the store. I got back and told Johnny that we had to dye his hair but he thought i should dye mine. We argued for about 15 minutes and little did we know that 3 older teenage girls heard us and reported that they heard sounds from inside the building
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A CT angiogram is a procedure to look at the blood vessels in various areas of the body. For this procedure‚ a large X-ray machine‚ called a CT scanner‚ takes detailed pictures of blood vessels that have been injected with a dye (contrast material).A CT angiogram allows your health care provider to see how well blood is flowing to the area of the body that is being checked. The health care provider will be able to see if there are any problems‚ such as a blockage.Tell a health care provider about:Any
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using a pH paper‚ indicator dyes and a pH meter‚ several tests will be conducted to check which one will result in a precise pH level reading. Materials and Methods Ph Paper. Get 5 beakers and label them A through E. Fill the beakers with 20 to 25 milliliters of the appropriate solutions and then cut a piece of pH paper at least one inch in length. Dip the pH paper into the solution and color coordinate with the pH chart it provides. Using indicator dyes. Get 2 sets of test tubes
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gathered from the chromatograms to support their conclusions about which suspects can be excluded from suspicion based on evidence. • Understand that the separation of dye molecules in chromatography is a physical property of the dye and movement of the dye is unique for each different dye molecule. • Defend their conclusions about the dyes based on the evidence that they gathered. TIME ESTIMATE: Prep: 60 minutes (cutting paper stripes and marking the crime scene strips takes a lot of time.) Activity:
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brings together recent photographs and original images by one of today’s most famous photographers‚ William Eggleston. He has been criticized for using dye-transfer photographs‚ which is complicated and expensive in terms of prints. He only photographs every day objects that are always overlooked‚ and some people say is a waste of money to use the dye-transfer. Eggleston uses this process for making prints from his transparencies and color photographs‚ as it permits him to control the colors individually
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History of Camera “Photography” is derived from the Greek word photos meaning light‚ and graphein meaning to draw. The word was first used by the scientist Sir John F.W. Herschel in 1839. It’s a method of recording images by the action of light‚ or related radiation on a sensitive material. Alhazen (Ibn Al-Haytham)‚ a great authority on optics in the middle ages who lived around 1000 Ad‚ invented the first pinhole camera. The first casual reference to the optic laws of pinhole cameras was
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INKJET PRINTING What is inkjet? The Inkjet printer produces a digital image by dropping ink released from a nozzle onto paper‚ and are the most common consumer printers today mainly because of their reasonably low cost which caters to home and office users. It can range from consumer models to very large all-in-one units and specialty machines. History The Siphon Recorder‚ invented by Lord Kelvin (William Thomson) in 1867 was the first recording device that used drops of ink emitted from
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and in ice. Controlled Variables: Planting pots‚ planting soil‚ amount of planting soil‚ water type/amount‚ blue dye/amount‚ amount of time Independent Variable: Temperature plants are placed in Dependent Variable: Xylem size in Roma Tomato plants Materials: 18 Roma Tomato plants 18 planting pots 3 bag of planting soil 25 mL beaker 1000 mL beaker Blue dye Water Ice Refrigerator Freezer Heat Lamp Thermometer Procedures: 1. Place six pairs of tomato
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lab the chelating agent used is Na2EDTA. Our Indictor Eriochrome Black T‚ is a dye‚ and will form a pink complex in the presence of a metal cation. As EDTA solution is added to the solution‚ the metal ions will complex to the EDTA solution leaving the indicator solvated. The chemical equation‚ with the known calcium ion solution‚ looks as follows: Where H2In¯ represents the solvated indicator Erichrome Black T dye. H2In¯ + Ca 2+ ⇌ CaIn¯ + 2H (blue) (pink)
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