this recrystallization lab in order to achieve the desired results‚ which included heating the solvent‚ completing a hot filtration‚ completing a vacuum filtration of a chilled solution‚ as well as drying and calculating the weight and melting point of the final version of the sample. I began the lab with 1.5 grams of the impure acetanilide solute and ended the lab with 0.05 grams of pure acetanilide crystals. The percentage of pure acetanilide I recovered during this lab was 3.33%‚ which is lower
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God or mention religion in anyway? Secularists think that they have the accurate view of the United States. They are persuaded that United States should be a godless or secular state. They deem that religion was not an important aspect in the formation of the United States Constitution. This confirms that the Constitution farmers did not like religion to have any influence on the public policy. According to them religion and politics do not mix. Thus‚ religion and government should be kept far
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OPEC – Formation and influence on the world economy Ahlam Colorado Heights University Abstract The Organization of Petroleum Exporting Countries (OPEC) ‚ is a permanent intergovernmental Organization‚ created at the Baghdad Conference on September 14 th‚ 1960‚ consisting of the world’s major oil-exporting nations. It was founded to coordinate and unify the petroleum policies of its members‚ to serve as a platform for oil producers to achieve their economic objectives by limiting supplies in the
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In the beginning of this course we learned about society and how individuals feel where they belong in a society as a whole. We also learned how individuals are perceived through different dimensions. I am a white female that comes from a an upper middle class family living in long island‚ New York that comes from a middle eastern background. My culture I feel has affected me personally in society and it contributes to my morals and beliefs that make me who I am today. Race is one of the main reasons
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| Glucose (C6H12O6) | No | Nothing changes | Nothing changes | Dilute Sulfuric Acid (H2So4) | Yes | Bubbles | Bigger bubbles | Sucrose (C12H22O11) | Yes | Light bubbles | Light but more visible bubbles and light brown liquid | Copper Sulfate (CuSo4) | Yes | Light bubbles | Changes color to brown and oxidation is observed | Ethanol (c2H5OH) | No | Nothing changes | Nothing changes | Calcium Hydroxide (Ca(OH)2) | Yes | Light bubbles | Light bubbles but more than in anode | Potassium
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College Chemistry 1 Lab 16 Oxidation Reduction Lab 16 Introduction: I will learn about redox reactions. Materials and Methods: I placed ten drops of each substance into different wells. Then I took Magnesium and put it in the first one. I put Zinc into the second one. I placed lead into the third and fourth one‚ and put iron into the fifth one. Results: See Table Below. Discussion: I learned about different redox reactions. Questions: A. Sodium
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temperature of the solution at 80 degrees at all times and therefore may cause you to add more or less volume to the titrated solution. Finally‚ over the course of the experiment‚ we noticed different accuracies in the scales we used throughout the lab. The differences between different scales for the same sample go differ by up to 0.100g which could certainly impact the amount of solute we believe we have
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PROFETH (PROFESSIONAL ETHICS WITH VALUES FORMATION) Ethics is derived from the Greek word ETHOS which means “characteristic way of living”. Its Latin equivalent is mos‚ mores‚ meaning “tradition of custom”. Ethos includes mannerisms‚ religion‚ politics‚ law and social aspirations of a group of people. Ethics is defined as the science of the morality of human acts. Ethics is the study of human motivation‚ and ultimately‚ of human rational behaviour. That aspect of subject matter which primarily
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Biology 20 IB Design Lab Does increasing or decreasing the ph level of a 3% concentration H2O2 (l) solution affect the amount of oxygen released between 15.0ml of the solution and a 5g sample of liver? The reaction is measured by the difference in mass of a balloon that is used to capture the amount of gas released by the catalase enzyme found in liver reacting with a basified 3% H2O2 (l) and an acidified 3% H2O2 (l) . Chemical reactions occur when two or more molecules interact and the molecules
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Krotec; Honors Bio Period 4 Photosynthesis Lab Report I. Introduction The photosynthesis lab is designed to quantify photosynthesis‚ enabling a number of variables to be tested for their effects on photosynthetic rate. The production of oxygen‚ is used as an indirect measure of photosynthetic activity.The lab allows the examination of the effects of different wavelengths of light on photosynthetic activity. The other aspect of the lab includes Paper chromatography‚ which is
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