Determination of the Rate Constant for a Chemical Reaction Department of Chemistry Abstract This experiment was performed to determine the rate constant k‚ for hydrolysis of tertiary butyl chloride to tertiary butanol. The solvent system for this reaction is 45% isopropyl alcohol and 55% water. The rate of hydrolysis of t-butyl chloride is measured by the decrease in the concentration of this reagent with time. The rate of decomposition of t-butyl chloride must be equal to the rate of formation
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Determination of a Rate Law and Temperature Dependence of a Rate Constant By Marvin Coleman March 7‚ 2011 Abstract: From the shown calculations & graphical analysis‚ the experimentally determined rate law is rate = K[I-].969 [H2O2].991 and the experimentally determined activation energy is 59.50 kJ/mole. Introduction: The rate of a reaction varies at different temperatures and reactant concentrations. In this experiment‚ the orders and dependence of the rate constant of the products
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NARY A DROP TO DRINK Water is all around us. This substance is of high importance to every living thing which is on planet earth. As much as we consider water to be life and the most important substance‚ still we don’t seem to appreciate it very much‚ as it is being wasted in such great amounts. Everyone believes that water will always be around but not taking into account that the majority of the water on planet earth are not for human consumption. Human beings can only survive on consuming
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Marz Jhon V. Patricio QUANTITATIVE DETERMINATION OF THE ACIDITY OF SOFT DRINKS I. Introduction A. Principle Titration is a laboratory method that is the slow addition of one solution to another until the reaction reaches neutralization‚ which is often indicated by color change. Acid-base titration is the most frequently used procedure to determine the concentration of an acid or basic solution. This titration is also called as neutralization reaction. By adding an indicator to the solution‚ we will
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Determination of Water in a Hydrate DESIGN – Aspect 1: Defining the problem & selecting variables Research Question: What percentage of Copper Sulfate Hydrate is water? Background Information: There are many ionic compounds that contain one or more waters of hydration in their formulae. They exists either in anhydrous or hydrated form. Most anhydrous compounds have a strong tendency to absorb water from the humidity in the atmosphere and shifts into a hydrated form. Because of
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Phuong Pham Prof. Johnson Lab 3 Gravimetric determination of Calcium as CaC2O4.H2O Feb‚ 27‚ 2014 I. Objective: The purpose of this lab is to determine how well gravimetric method measures the calcium level in a solution of known calcium concentration. II. Method: a) Overview: In this lab we will prepare 25 mL known concentration Calcium solutions. Then we will use Gravimetric method to determine the concentration of Calcium in each solution to figure out how well this method is. As we know
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T-13 T-14 T-15 T-16 T-17 T-18 CL-1 CL-2 CL-3 CL-4 CL-5 CL-6 CL-7 CL-8 CC-1 CC-2 CC-3 CC-4 CC-5 CC-6 Dr Pepper Sparkling Fruit Flavour Soft Drink Pepsi Cola Coca-Cola USA Classic Cola American Classic Cola Whole Earth Organic Cola Coca-Cola Coke Light (Sugar Free) Dydo Energy Gym Gatorade Lemon Flavour Sport Drink Red Bull Energy Drink Barr IRN-BRU "V" Energy Drink 250 250 240 250 250 250 50 50 250 330 100 280 500 500 300 250 250 500 500 250 500 350 500 240 250 300 250 350 340 500 500 250 250 330
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Determination of specific heat Capacity of a solid by electrical method Introduction Thermal conductivity heat is transferred as a consequence of temperature difference between 2 bodies‚ heat energy passes form a hotter to the colder body. Specific heat capacity is the amount of heat energy required in joules to raise 1kg of a substance by 1 degree Celsius‚ different substances absorb heat energy at different rates not all substances require the same amount of heat energy to increase the
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Experiment #6: Colorimetric Determination of pH Almira‚ Faerie Carleen Lucile L. Gallardo‚ Charlotte O. Group #6‚ Chemistry 18.1‚ MHEG1‚ Ma’am Arlou Angeles September 23‚ 2013 I. Abstract The acidity of the four unknown solutions were determined with the use of colorimetry using McIlvaine’s buffer solutions varying in proportion of its constituents (disodium phosphate and citric acid). These buffer solutions were subjected to the addition of corresponding pH indicators and the variation of
Free PH PH indicator Acid dissociation constant
The Significance of the Giant’s Drink In Orson Scott Card’s Ender’s Game‚ the “mind game” is a constantly changing computer game made for the students and is used by the commanders of the battle school as a tool to monitor and analyze how the students are feeling. Ender Wiggin becomes increasingly obsessed with the game‚ specifically after he becomes stuck at the “Giant’s Drink”. At this point‚ the game seems to hit a dead end‚ with none of the options for the player to take being the right one
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