The rate of fermentation is faster when there is more sucrose concentration because it means there is more glucose‚ which in return means more carbon dioxide production. The sucrose concentrations were 0%‚ 1%‚ 5%‚ and 10%. The 0% sucrose concentration is just normal‚ plain water. Yeast‚ a single celled eukaryotic fungi‚ was put into the solutions. It uses fermentation to make more carbon dioxide and alcohol. In the 0% solution‚ no carbon dioxide had been produced. At the start‚ the depth of the
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solution of known concentration. Observations of the Vitamin C sample and the amount found on the label was recorded. A tared piece of weighing paper was used to weigh 0.27 g of Vitamin C. The Vitamin C was then transferred to a clean 50 mL volumetric flask. The flask was filled to the mark with distilled water and covered with Parafilm. It was then inverted to mix.
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CHEMICALS IN COSMETICS (OVERVIEW) FACTSHEET A cosmetic is a substance or preparation that is designed to be used on any external part of the human body – including in the mouth – to change the odours of the body‚ to change its appearance‚ cleanse it‚ keep it in good condition‚ perfume it or protect it. Cosmetics include soap‚ shampoo‚ moisturiser‚ hair dye‚ perfume‚ lipstick‚ mascara and many other products‚ but do not include products regulated as therapeutic goods (medicines). Cosmetics are made
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are the methods of inquiry and how are they used in criminal investigation? The method of inquiry is based on gathering observable‚ empirical and measureable evidence. Basically‚ methods of inquiry are ways that an investigator gathers the information for the case that they are investigating. Methods of inquiry are used in criminal investigation by collecting evidence‚ statement collection‚ and going through electronic databases and even the internet. The methods of inquiry are all used in conjunction
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ISSN: 2249-4626 & Print ISSN: 0975-5896 Chemical and Physicochemical Properties of Moringa Flours and Oil By Abiodun O.A.‚ Adegbite J.A. & Omolola‚ A.O. Osun State Polytechnic‚ Nigeria Abstract - This work evaluates the chemical and physic-chemical properties of moringa seed flour and oil. The moringa seed were divided into two portions. The first portion was milled into flout while the second portion was defatted using soxlet extraction method. The moringa cake was milled into flour.
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In this experiment I calculated the equilibrium constant for the reaction shown below under different conditions to determine if the equilibrium constant is really constant. Fe3+ (aq) + SCN– (aq) ←→ FeSCN2+ (aq) A big part of this lab includes understanding (and in the end proving) that absorbance is directly proportional to the concentration of a solution (Beer’s Law)‚ and if Absorbance v. Concentration is graphed‚ a straight line will result. The regression line’s equation is used to determine
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Acid –Base Titration: A volume of 128 mL of 0.650 M Ba(OH)2 was required to completely neutralize 50.0 mL of nitric acid solution (HNO3). What is the concentration of the acid solution? Gravimetric Titration: Calculate the molar concentration of Ba2+ ions in a 500.0 mL sample of an unknown aqueous solution if 2.47 g BaSO4 is formed upon the addition of excess Na2SO4? Stoichiometry of Acid –Base Reactions: What volume of 0.800 M HCl is required to completely neutralize 35.0 g of Ca(OH)2
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Neale Hurston. In the essay How It Feels to Be Colored Me‚ Zora explores her own sense of identity through a series of striking metaphors. After realizing that she is of color‚ Hurston never really places a significant emphasis on the racial inequalities that exist in America. “At certain times I have no race‚ I am me.” Zora Neale Hurston did not have any separate feelings about being an American and colored. “But I am not tragically colored. There is no great sorrow dammed up in my soul‚
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BATCH 2004 Punjab Technical University‚ Jalandhar B.Tech. Chemical Engg. Scheme of Syllabi ( 3rd Semester ) Sr. no 1 2 3 4 5 6 7 8 9 Course Code Ch-201 Ch-203 Ch-205 Ch-207 Ch-209 Ch-211 Ch-213 Ch-215 Ch-217 Course Title Mechanical Operations Numerical Methods in Chemical Engineering Organic & Biotechnology Chemical Process Calculations Fluid Flow Strength of Materials Strength of Materials Lab. Fluid Flow Lab. Numerical Methods in Chem. Engg. Lab. L 3 3 3 3 3 3 - T 1 1 1 1 1 -
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Methods used by the civil rights movement in the 1950s The methods that were used in by the Civil Rights Movement in the 1950s were largely based around lobbying‚ protests and boycotting. The African American residing in the United States found these things effective and professional among their community‚ and together they worked towards changing laws‚ legislations and above all the constitution of the USA. Mass protesting was popular and one form of protesting that made a phenomenal part
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