Photocatalytic degradation of methylene blue using TiO2 nanoparticles Nupur Mittal Chemical Engineering‚ IIT (BHU) Varanasi. Abstract: The aim of this research is to reduce the pollution caused by methylene blue dye in waste water coming from textile industries. For this purpose‚ TiO2 nanoparticles are made as they show good photocatalytic activity in degradation of dyes into harmless products. Synthesis is done using titanium butoxide and 2-propanol. The particles formed were a little larger
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The purpose of the first part of the experiment was to produce a chemical compound which was the alum crystals by using aluminum‚ potassium hydroxide and sulfuric acid. After the compound was present‚ the purpose of the second part of the experiment was to make sure that the compound that was formed in the first half of the experiment was actually alum. Some of the experimental techniques that were used in this experiment was filtration using the Büchner funnel vacuum filtration‚ recrystallization
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Dr Jack Kevorkian: Disrupting the Universe Mike Cunningham 12-27-96 Social Studies 2‚ Mr. Johnson Dr. Jack Kevorkian did something that most people would never even think of doing or think that someone would do such a thing. He really did disrupt the universe by taking the whole world by surprise. Jack Kevorkian was the first person in the United States to assist in suicides in a big way. He started in 1990 by placing a newspaper add for assisted suicide. He then developed
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Discuss the consequences of disrupting biological rhythms Biological rhythms are controlled by endogenous pacemakers‚ which are our internal biological clocks and these rhythms are also affected by exogenous zeitgebers‚ for example light‚ food and noise. The most common disruptions of our biological rhythms occur due to aeroplane travel‚ which results in jet lag‚ and also due to shift work‚ resulting in shift lag. (AO1) Shift work described a type of job in which individuals have to be alert
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NRS 111 4/4/13 Case Study 76 1. * Fasting glucose: 184 mg/dL-above 99 mg/dL suspected diabetes mellitus among other etiologies * HbA1C: 8.8%-The American College of Endocrinology recommends and A1C less than 6.5%. An A1C of 8.8% would also indicate diabetes mellitus. * Total cholesterol: 256 mg/dL-total cholesterol above 200 mg/dL could indicate uncontrolled diabetes * Triglycerides: 346 mg/dL-levels above 150 indicate diabetes mellitus * LDL: 155 mg/dL-Increased levels of
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Chemical Equation Chemical Reaction: C10H8+ 12 O2 → CO2 + 4H2 O (Naphthalene) Combustion Introduction of the Product: Naphthalene is an organic compound with formula C10H8. It is the simplest polycyclic aromatic hydrocarbon‚ and is a white crystalline solid with a characteristic odor that is detectable at concentrations as low as 0.08 ppm by mass. As an aromatic hydrocarbon‚ naphthalene’s structure consists of a fused pair of benzene rings. It is best known as the
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Chemical Pesticides and the Damages they Cause Aaron Walker Devry University Chemical Pesticide and the Damages they Cause causes The articles and information that I grasped from the internet consisted of chemical pesticides and how they are affecting the animals‚ food‚ and humanity in today’s time. There are many ways to eating healthy‚ but at the same time we must be observant to the types of food that we put in our system. We have leaner products‚ vegetables
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Chemical Weapons Chemical weapons use the toxic properties of chemical substances rather than their explosive properties to produce physical or physiological effects on an enemy. Although instances of what might be styled as chemical weapons date to antiquity‚ much of the lore of chemical weapons as viewed today has its origins in World War I. During that conflict "gas" (actually an aerosol or vapor) was used effectively on numerous occasions by both sides to alter the outcome of battles. A significant
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2 Chemical warfare What is Chemical Warfare: To understand chemical warfare you must first understand what a chemical agent is. A United Nations report from 1969 defines chemical warfare agents as " ... chemical substances‚ whether gaseous‚ liquid or solid‚ which might be employed because of their direct toxic effects on man‚ animals and plants ... ". This means basically that any chemical that is used to directly effect and harm a person‚ plant‚ or animal would be an act of chemical warfare
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Chapter 1 Chemical Reactions and Equations Q.1. Why should magnesium ribbon be cleaned before burning in air ? Ans: Magnesium ribbon is a very reactive metal. When stored it reacts with oxygen to form a layer of magnesium oxide on its surface. This layer of magnesium oxide being a stable compound prevents further reaction of magnesium with oxygen. The magnesium is cleaned before burning in air to remove this layer so that the metal can be exposed to air properly. Q.2. Write the balanced
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