Kinetics of Hydrogen Peroxide February 22‚ 2007 Chem. 1130 TA: Ms. Babcock Room 1830 Chemistry Annex PURPOSE OF THE EXPERIMENT Kinetics of Hydrogen Peroxide The major purpose of this experiment is to determine the rate law constant for the reaction of hydrogen peroxide and potassium iodide. In this experiment‚ the goal will be to try to measure the rate law constant at low acidity‚ since at low acidity‚ anything less than 1.0 x 10-3M‚ the effect of the hydrogen ion is negligible. To calculate
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table List of Polyatomic Ions that Must be Memorized for General Chemistry Polyatomic Cation: NH4+ ammonium ion Polyatomic Anions Ionic Charge: Oxyanions: ClO4– perchlorate ion ClO3– chlorate ion – ClO2 chlorite ion ClO– hypochlorite ion -1 Ionic Charge: Oxyanions that Contain Hydrogen: HCO3– bicarbonate ion or hydrogen carbonate ion HSO4– bisulfate ion or hydrogen sulfate ion NO3– NO2– nitrate ion nitrite ion MnO4– permanganate ion H2PO4– Others: CN–
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The lab today was focused on finding the ratio of reactants to products to be either 1 to 1 or 1 to 2. In our case the reactants was Lead (II) Nitrate and Potassium Iodine. These two when mixed together make Lead Iodide and Potassium Nitrate. We also had to try and find if the number of moles of Lead(II) Nitrate was the same as the final number of moles for Lead Iodine after the experiment. Our data for the lab had pinpoint accuracy. Proved by the data table below Trials Volume of Pb(NO3)2 Mol
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Acknowledgement Introduction & Objective Theory Requirements Procedure Observation & Calculation Result Acknowledgement I __________ of class _______ thereby declare that this investigatory project of chemistry on “Study of presence of Oxalate Ion content in Guava fruit at different stages of ripening” is made by my own hard work and efforts under the supervision of our Chemistry Teacher__________________ Signature:___________________ Introduction & Objective Guava is a
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On top with iON NotePad Matthew Barela‚ Rhonda Berdan‚ Maila Finch‚ Desilyn Forbes‚ Seyed Saboohi‚ Shailin Suthar UOPX Marketing MKT571 Armando Salas-Amaro November 28‚ 2012 On top with iON NotePad Innovations in technology‚ consumer dependence on mobility‚ compiled with the introduction of the tablet took the market by storm. Apple’s introduction of the iPad in 2010‚ instantly dominated the mobile computer market (iPad and Tablet Computers‚ 2012). International demand for products‚ such
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KINETIC SCULPTURE EVALUATION Ekin Kara KINETIC SCULPTURE EVALUATION TESTS TEST 1 Movement Test Procedure Blow Dryer‚Wind‚ Blowing‚ Touching‚ Fan Outcome When I used blow dryer‚ the only vane that turned was the one that was right in front of the blow dryer even though I increased the volume. But I think it happened because the blow dryer only focuses on one point so it doesn’t effect the other vanes. When I used the power of wind‚ I realized that the result was so much
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eventually falls in the liquid with a constant speed of 6.0 cm s . k www.studyguide.pk www.studyguide.pk www.studyguide. (i) For this sphere travelling at constant speed‚ calculate k www.studyguide.pk www.studyguide.pk www.studyguide. 1. its kinetic energy‚ k www.studyguide.pk www.studyguide.pk www.studyguide. k www.studyguide.pk www.studyguide.pk www.studyguide. k www.studyguide.pk www.studyguide.pk www.studyguide. k www.studyguide.pk www.studyguide.pk
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HC2O4−. A salt with this anion is sometimes called an acid oxalate‚ monobasic oxalate‚ or hydrogen oxalate. The equilibrium constant (Ka) for loss of the first proton is 5.37×10−2 (pKa = 1.27). The loss of the second proton‚ which yields the oxalate ion has an equilibrium constant of 5.25×10−5 (pKa = 4.28). These values imply that‚ in solutions with neutral pH‚ there is no oxalic acid‚ and only trace amounts of hydrogen oxalate.[1] The literature is often unclear on the distinction between H2C2O4‚
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The kinetics of the Harcourt-Essen Reaction (Hydrogen peroxide variation) Aims: To find the order of the reaction with respect to the Hydrogen Peroxide (H2O2)‚ Potassium Iodide (KI) and the Sulphuric Acid (H2SO4) by the use of an Iodine clock reaction. Calculate the rate constant‚ mechanism and equation Find the effects of temperature on the rate of reaction The effects of a catalyst on the rate of reaction Find the activation enthalpy (Ea) of the reaction‚ with and without a catalyst Background:
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material elements in contact. It is usually subdivided into several varieties: * Dry friction resists relative lateral motion of two solid surfaces in contact. Dry friction is also subdivided into static friction between non-moving surfaces‚ and kinetic friction (sometimes called sliding friction or dynamic friction) between moving surfaces. * Lubricated friction or fluid friction resists relative lateral motion of two solid surfaces separated by a layer of gas or liquid. * Fluid friction
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