DETERMINATION OF THE HEAT OF SOLUTION BY THE VANT HOFF ISOCHORE METHOD Jan Vincent Arafiles‚ Merry Joy Arzaga‚ Anne Louise Ayson‚ Lovely Jenny Buenaflor Group 2 3A-Biochemistry chem401 laboratory ABSTRACT Thermodynamic values can be determined using the Vant Hoff isochore method. This method entails the use of equilibrium systems to determine the change in enthalpy of the solution‚ which can b related to the change in internal energy of the solution. The van ’t Hoff isochore relates
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Name: Keziah V. Cuyom Section: 9 - Malaya Topic: Types of Chemical Reaction A chemical reaction is a process that is usually characterized by a chemical change in which the starting materials (reactants) are different from the products. Chemical reactions tend to involve the motion of electrons‚ leading to the formation and breaking of chemical bonds. There are several different types of chemical reactions and more than one way of classifying them. Here are some common reaction types. However‚ if
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Overview Chemical Warfare is using the chemical properties of a substance to your advantage during war. This has been going on for centuries. Even the most basic forms of weapons were used. People have been putting poison on the end of their spears and arrows since they have been around. Over the years‚ it has also developed into much more advanced chemistry. In this article‚ I am going to focus on the more advanced‚ modern uses of chemical warfare in World War I and World War II. World War
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POLLUTION!!- IS THERE A SOLUTION? Human Beings belong to a species that poisons its own habitat. If we think of our planet as a spaceship then we are the new and all other species are passengers. In general we behave irresponsibly .Earth’s atmosphere forms a protective cocoon around our spaceship‚ storing and recycling essential elements such as carbon and oxygen. Humans fill the air with pollution that turns the rain acidic and threatens to alter the climate pollution from and fossil and nuclear
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Toggle Sidebar Find Previous NextPage: of 5 Tools Zoom Out Zoom InAutomatic ZoomActual SizeFit PageFull Width50%75%100%125%150%200% Chemical Oxygen Demand (COD)Introduction:The Chemical Oxygen Demand (COD) test is the standard method for measuring the amount of pollution in a sample that is unable to be oxidised biologically.Oxidation takes place on both the organic and inorganic component but as the organic component is more dominant‚ it is
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Biological and Chemical Outline Biological and chemical warfare has been around since the beginning of time. From poison tipped arrows to purposely transmitting smallpox to individuals. There has been ongoing political conflict on biological and chemical warfare for quite some time for legitimate reasons too. Biological and chemical warfare is very deadly and sometimes inhumane‚ but on the other hand it is very cost efficient and is very effective at doing its job. Biological and chemical warfare
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Name: Tom Flannigan Title: Physical and Chemical Properties Purpose: To investigate the chemical properties of pure chemical substances. To investigate the physical properties of pure chemical substances. Procedure: For this lab we used four test tubes and poured equal amounts of a substance in each test tube. We then observed the color and odor. We then heated the substance and recorded the observation. The next tube we added cold water and observed the effects‚ then we heated it
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November 28‚ 2014 ! ! Physical and Chemical Properties! Purpose/Hypothesis:! • The purpose of this experiment is to investigate the chemical and physical properties of pure chemical substances. A property of a substance is some distinguishing characteristic. Some of the most common physical properties are color‚ odor‚ hardness‚ density‚ melting point‚ boiling point‚ and solubility in various solvents. For all of these properties‚ no chemical change takes place. Chemical properties describe the tendencies
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Physical & Chemical Properties Data Table 1: Solubility or Reaction Substance Name Color Odor Effect of Heat Cold Water Hot Water Litmus test Dilute HCl Dilute NaOH Mg Silver None None None None Base Fizzes‚ gas‚ increased temperature None Cu Brown None None None None Base None None Zn Silver None None None None Base Fizzes None MgO White Slight odor None None Bubbles Base Dissolves‚ turns yellow‚ increased temperature None CuCO3 Green None Melts
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Observations of Chemical Changes Purpose: The purpose of this experiment is to predict and examine chemical changes/reactions among common chemicals found in consumer products at a macroscopic level. Procedure: The procedure of this experiment was to carefully mix different chemicals together using the chemical filled pipettes and the 96-well plate and determining what chemical reactions occurred. Data Table: Observations of Chemical Changes Experiment 1: Observations of Chemical Reactions |
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