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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Analysis 1. Examine the structures of the FD&C Red No. 40‚ Blue No. 1 and Yellow No. 5 dyes. What are the similarities and differences in the structures of the three dyes? a. Red No. 40‚ Blue No. 1‚ Yellow No. 5 contain carbon rings and NaSO3. Additionally‚ Red No. 40 and Yellow No. 5 are very similar‚ as they both contain one nitrogen double bond‚ a hydroxyl group‚ and no ions. Blue No.1 contains nitrogen and chlorine ions and N(C2H5)CH2. 2. In the Introductory Activity‚ the developing solvents
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HOMEWORK FOR 2 OCTOBER YOU MAY BEGIN PREPARING THIS NOW‚ SINCE THERE IS NO HOMEWORK BESIDES TEXTBOOK READING FOR MONDAY 30 SEPTEMBER FIRST EXAM REVIEW SHEET In the first few weeks of this course‚ we have surveyed over 25‚000 years of history and prehistory. We have focused on certain elements of culture: 1* Spiritual worldview 2* Expression of this worldview in literature and art 3* Political or social organization We have studied the following civilizations: [Christianity
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spectroscopy create graph to determine the concentration of dye in a sport drink‚ by creating series of standard dilutions of an FD&C Blue 1 Stock solution and measuring the percent transmittance of each dilutions. Results in each dilutions will be use‚ to determine the linear function among various functions (T‚ T%‚ log T‚ - logT) For a Beer’s law calibration curve. The produce provides a model for guided-inquiry analysis of the concentration of food dye(s) in sports drinks and other consumer beverages.
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My Polish Teacher’s Tie Every day there is a new story to tell like this story. Nothing to exhiting‚ just another ordinary every day story. This one is written by Helen Dunmore who is a very good poet and prosa writer. The story develops around the staff of a school where Carla Carter works... In this story we are very close to the events as it is told in the first person. We are part of Carla’s thoughts and we see everything trough her eyes. This makes the story more demanding on the reader
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There’s More to a Pair of Jeans than You Thought Jeans are pants and a world icon for the casual look. It has been so far for decades. I t is known for its comfort and many different styles of fitting. It’s now available in many different colours but perhaps the most famous one is blue jeans. There’s more to a pair of jeans than you thought. Most of you probably think that jeans are just made in factories by machines‚ but that is certainly not the case. For starters‚ the brass wire that makes
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Company Profile 1 E veryone at Aarvee Denims & Exports Ltd……… From management that is in tune with international fashion demands to the shop-floor worker is highly responsive to your need to work with a partner who understands and provides a supportive single source solution to all your denim needs. C ollaborative research in creating and manufacturing new‚ exciting combinations and finishes in denim allows you to morph your sensational new ideas into revolutionary new products. Our
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Determining the Concentrations of Red Dye in Sodas Abstract The use of red dye #40 is common in various soft drinks today. The labels on these beverages do not specify how much dye we are consuming. We did this experiment to find out which soda uses the most dye. Using a spectrophotometer‚ we measured how much light is absorbed by various known concentrations of red dye. After collecting this data‚ a standard curve was made that correlated the concentration of red dye #40 to its absorbance rate. Our
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I told him about Jade. I told him about the songs my mother taught me in Polish‚ the ones I used to know but I’d forgotten. I didn’t write anything about my job. Let him think what he wanted to think. I wasn’t lying. The first poem he sent me was about a bird in a coal mine. He sent me the English translation. This bird flew down the main shaft and got lost in the tunnels underground‚ then it sang and sang until it died. Everyone heard it singing‚ but no one could find it. I liked that
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Separations: Chromatography of M&M and Ink Dyes Almost all substances we come into contact with on a daily basis are impure; that is‚ they are mixtures. Similarly‚ compounds synthesized in the chemical laboratory are rarely produced pure. As a result‚ a major focus of research in chemistry is designing methods of separating and identifying components of mixtures. Many separation methods rely on physical differences between the components of a mixture. For example‚ filtration takes advantage of substances
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