Organic Dyes Lab Report

The purpose of this lab investigation is to make 1 L of Pirate Purple dye solution. The claim states that the use of the concentration and absorbance of the Blue 1 dye and Red 3 dye will lead to the concentrations of the red and blue dye to yield 1 L of Pirate Purple dye. In order to understand molarity or concentration, familiarity with the terms of solute, solvent, and solution are very important. A Solute is a substance that is being dissolved by a solvent. A solvent is a substance that is dissolving the solute. Solution is a solute of a homogenous mixture that is dissolved in a solvent. With that being said, molarity is the moles of a solute divided by the liters of a solution (mol/L). In accordance to concentration, absorbance is used

The main purpose of this experiment was to synthesize a series of inorganic pigments, qualitatively observe their macroscopic and microscopic properties and perform a series of qualitative micro-chemical spot tests on them. The other purpose was to design a qualitative analysis experiment for the purpose of identifying an unknown inorganic pigment. In the first week of this experiment, barium white, zinc yellow and chromium oxide green were synthesized using macroscopic inorganic pigment reactions. The final yield of chromium oxide green was found to be 0.2001 g with a yield of 11.50 %. Prussian blue was synthesized using microscopic inorganic pigment reactions. In the second week of the experiment the micro-chemical

This is largely because they are relatively cheap and simple to manufacture. Furthermore, they produce vibrant shades of color and are reasonably soluble in water (Liu, Wan, Nan, n.d.). However, these dyes are now manufactured at such a large scale that they bring up numerous health and environmental concerns. In recent years azo dyes, especially Allura Red AC, have been connected to child hyperactivity, which also raises concerns over other potentially toxic effects they can have on living organisms (“FDA Probes Link”, 2011). This is only amplified by the fact that azo dyes such as Allura Red AC and Azo Grenadine are also especially recalcitrant to conventional methods of wastewater treatment. Research on this topic led me to an article on electrochemical advanced oxidation processes and their potential as a solution to mineralizing especially recalcitrant compounds in the environment, "Decontamination of Wastewaters Containing Synthetic Organic Dyes by Electrochemical Methods: A Review." This led me to pursue the investigation in my extended essay on the topic of electrochemical advanced oxidation processes and the effect they have on azo dyes such as Allura Red AC and Azo Grenadine. In order to evaluate the effect of this process, I made the decision to do a comparison of the two dyes. This led me to the question, “How does the effect of electrochemical advanced oxidation processes vary between Allura Red AC and Azo

In this lab, guaiacol, a color changing dye, was used in place of R and turned brown when oxidized or lost electrons.

Every cell transports materials in and out throught something called a membrane. There are many different methods of transport in the cell Saccharomyces cerevisiae (Serrano, 1977) We want to know does adding higher concentrations of azide more effectively block dye transport? We tested the transport of dye in yeast cells with a metabolic inhibitor. When we did this we showed no difference in the absorbance between different azide solutions, and our control. From this we concluded that azide has no effect on the transport through a yeast cell membrane.

My science fair project is based on why flowers change their appearance in food dye?I chose the topic on flowers because I always see my garden outside,but I never get to experience more than just watching them grow.The main reason why I was interested in beginning this project is to find out why and how the flowers change color.In other words the contact with this experience will help me excel beyond my extent.

Acids were varying shades of red or pink and the bases were varying shades of green. The only unexpected result was the variability of color change in the pH 12 buffer solution, though this was attributed to the text, Table 2, stating the pigments are not stable at pH 12 (Pearson, 37).

Parents are and should always be concerned with the growth and development of their children. Responsible parents protect their children from dangerous things that could have a devastating impact on their bodies. This includes actions such as touching a hot stove, running with scissors, and eating food off the ground. Parents are often compared to bears. A mother bear will go out of her way to ferociously protect her cubs. Human parents, however, are not living up to the standard. Children are still getting affected by very subtle chemicals that many people know and love- food dyes. By excluding food dyes from grocery lists, Americans can keep the impacts of food dyes on children, such as Attention Deficit/Hyperactivity Disorder (ADHD), in the public spotlight to inform consumers of the negative effects on

The Uptake of Neutral red dye by saccharomyces cerevisiae in the presence of a metabolic inhibitor

It was found out that our graphs for yellow 5 and yellow 6 were half the concentrations needed to mimic orang PowerAde. This was found out with the help of the TA. Both the Full Throttle and orange PowerAde used twice as much food dye concentration then what was provided for the experiment. In order to compare our made solution with the beverage, orange PowerAde needs to be diluted to a solution that contained 50% distilled water and 50% PowerAe To do this, take 5 mL of orange PowerAde and add 5 mL of distilled water. A new absorption graph can be formed and used to compare with the made

The main purpose of the food dye experiment was to identify the different food dyes; red, blue, and yellow; and their concentrations that make up the given liquid and use that data to recreate the liquids color profile. The liquid that was to be tested and recreated was Listerine mouthwash. To determine the food dyes present in the mouthwash use a UV-visible spectroscopy which will give the absorbances of each wavelength. With the absorbance find the concentration of each color dye by using Beer’s Law. To find the volume need for each dye use the equation M1V1=M2V2 to recreate the

Creatinine is a waste product filtered by the kidneys into the blood (serum) and urine. High serum, and/or urine creatinine levels are indicative of kidney dysfunction. A colorimetric assay can be used to determine the creatinine concentration in the urine and serum samples from patients who are suspected to have kidney dysfunction.

Dispense .5 mL water into the already weighed conical vial, replace cap and face insert on its down side.

A colourmeteric assay was carried out to enquire into the extent of hydrolysis of substrates alone and in the presence of inhibitors. The aim of the experiment was to determine the substrate specificity of the enzymes AChE and BChE, in addition to their sensitivity to several cholinesterase inhibitors.

Atoms are the basic units of matter and all life is based on them. Life on earth is based on the element carbon. It is a highly versatile atom able to form four covalent bonds with itself or other atoms such as hydrogen and water. Atoms combine to form molecules and those that are carbon based are referred to as organic molecules. Organic molecules occur in four different types in living cells; carbohydrates, lipids, proteins and nucleic acids. They are also known as hydrocarbons due to the presence of both hydrogen and carbon. Carbohydrates are made up of carbon, hydrogen and oxygen in the ratio 1:2:1. They are important sources of energy and are classified in three main groups; monosaccharides, disaccharides and polysaccharides.