Experiment 1: Study of Solubility Equilibrium Data Treatment and Analysis Section 1: Solubility Product Constant Temperature (˚C) | Volume of NaOH used (mL) | | | | Titration 1 | Titration 2 | Average | 28 | 12.7 | 12.8 | 12.75 | 9 | 10.5 | 10.5 | 10.5 | 19 | 11.3 | 11.2 | 11.25 | 40 | 16.2 | 16.2 | 16.2 | 50 | 22.8 | 22.9 | 22.85 | Table 1: The volume of NaOH used in the titration at various temperatures. No. of moles of KHC4H4O6 = 1.45 g ÷ 188.177g/mol = 7.71 x 10-3mol
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period after the civil war. It was during this time that America was beginning to clean up from the war and rebuild the country. The north and south were finally coming back together‚ and that brought great changes to America. The ways of living before were different compared to what they were during and after the reconstruction. New laws and acts were being set in place to prevent another war from breaking out again and to maintain peace and justice that had been accomplished from the war ending
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Why Teenagers Need Cars Imagine cruising down the highway in a brand-new red Mustang. This must be every teenager’s dream‚ though in reality‚ a compact sedan with a couple of dings in the door is probably more typical for those lucky enough to have a vehicle. Life is hard for teens who lack their own set of wheels. Today a car is a necessity‚ not a luxury‚ for teenagers‚ in my opinion. To begin‚ the daily schedule of the average student is a whirlwind of activity. What parent has time to
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is considered in a state of equilibrium when its properties do not change at time passes. Equilibrium is a state of a reaction where the concentration of all the reactants and all the products remain constant over time. Equilibrium as used in chemical systems means that all the chemical forces in a reaction are in balance and that all physical properties of the system (color‚ density and concentration) of all chemicals species involved remains constant. The equilibrium state can be characterized by
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Outbreak The virologists determined the identity of the virus causing the disease by taking blood samples from the people who were sick or who were getting sick‚ the n they put them under the microscope and studied them. They tracked the epidemic down by following where people were getting sick; the virologists finally followed the virus back to the ship that was carrying all the animals and the monkey. They conquered the virus by taking the serum from the host after they caught it and injecting
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CH 127 – Chem 2 Lab Determination of an Equilibrium constant Goals The purpose of this experiment is to determine the equilibrium constant for the reaction Fe3+(aq) + HSCN(aq) –>FeSCN2+(aq) + H+(aq). The equilibrium constant expression Kc for Reaction is kc=FeSCN2+[H+]Fe3++[HSCN] Procedure *Preparation of the Beer’s law plot Prepare five solutions of FeSCN2+(aq) of known concentrations between 1x10-5M and 1x10-4M by diluting various volumes of 4.62x10-4 HSCN. Calculate the Final concentration
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Shane Kearns Bellevue University Business Communication 5/29/13 This paper will dicuss the rising prices on fuel over the past few years. It will involve the trucking industry and explain how the rising of gas prices has effected trucking company. Crude Oil prices have passing over one hundred dollars a barrel. This has effected many independent owners-operators. This article will dicuss why some independent owners have decided that it is no longer profitable to drive a truck. Some owners
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Determination of an Equilibrium Constant Abstract: In this experiment‚ two reactions were run to determine the molar absorptivity and the equilibrium constant of FeSCN2+. The main principles used in this lab are equilibrium‚ LeChatlier’s Principle‚ Beer’s Law and Spectrocopy. The first reaction was run to completion using LeChatier’s Principle and the second reaction was run to equilibrium. A spectrophotometer was used to measure absorbances. Using a graph of absorbance versus concentration
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electricity‚ the water separates into it’s basic molecules‚ Hydrogen and Oxygen (H2O). If you look at the picture on the left‚ you will see H2O molecules connected together in their liquid form which is WATER But when you apply electricity (from your car battery)‚ the molecules separate and form a GAS (called HHO) which is a mixture of Hydrogen and Oxygen. This HHO GAS is then sucked into your engine and mixed along with the air from the air filter. As the gasoline is ignited in your engine‚ the HHO
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For this assignment‚ I choose to watch the movie Outbreak‚ which is a movie about a hemorrhagic virus called “Mutoba”. In the movie‚ the host of the virus was a monkey. The descriptive epidemiology of the disease is as follows the virus was first discovered in 1967 in a small village in Zaire that was only a spread by contact. The virus was brought to the camp by a couple of men that sent out to build roads in the jungle then they came back to the village and drank from the well‚ from there all the
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