Determination of Reaction Rate Law from the Reaction of Crystal Violet with Sodium Hydroxide ______________________________________________ Abstract: This experiment helps determine the rate of reaction of crystal violet while it reacts with sodium hydroxide with respect to crystal violet. The amount of sodium hydroxide is varied in this experiment while crystal violet is kept at a constant. The transmittance of crystal violet is observed and recorded using a colorimeter and the data obtained is
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Chemistry 12/17/14 Rate Law Determination Pre-Lab Purpose: The purpose of this lab is to observe the reaction between sodium hydroxide and crystal violet so that the order of the reaction could be determined along with the rate constant‚ k‚ and the half-life for this reaction. Hypothesis: If the reaction between crystal violet and sodium hydroxide reacts appropriately‚ then the order will be first order. Procedure: Mix 10 mL of sodium hydroxide and crystal violet solution together. After calibrating the
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Decolorization of Crystal violet dye by Aeromonas hydrophila isolated from textile wastewater Sujata Mani and Ram Naresh Bharagava* Laboratory of Bioremediation and Metagenomics Research (LBMR) Department of Environmental Microbiology (DEM)‚ School for Environmental Sciences (SES) Babasaheb Bhimrao Ambedkar University (A Central University) Vidya Vihar‚ Raebareli Road‚ Lucknow - 226 025 (U.P.)‚ India *Corresponding Author: Dr. R. N. Bharagava Tel.: (+91) 522-2998718; Fax: (+91)
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Jeremy Li Wai Long Lam Experiment 9: Rate Law Determination of the Crystal Violet Reaction Goals: Under stand 1st‚ 2nd ‚ and 3rd order chemical reactions‚ learn graphing options available on LogerPro Purpose: Determine the reaction order with respect to crystal violet for the reaction between crystal violet and sodium hydroxide. Introduction: The rate expression for this reaction is of the form: rate = K(CV+)M(OH-)N Where k = re constant‚ m is the order of the reaction with respect to the
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Crystal making lab Purpose: To better understand saturated solutions‚ solubility . Analysis: 2. Why was it necessary to heat the water? Be specific. Heating the water allows it to hold much more borax in solution than it could at room temperature. So after the water cooled‚ the ability of the solution to hold the solute inside decreases‚this causes the excess borax in the solution to precipitate in crystal form on the string.When the water at a high temperature‚ water molecules have more kinetic
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Purpose: To determine the reaction order with respect to crystal violet dye. Procedure: Turn on a Spectronic 20 and warm it up for at least 15 minutes. Be sure the wavelength is set to 540nm. When the instrument has warmed up‚ use a clean small test tube from the drawer filled 2/3 with the first NaOH solution that is planned to use‚ as a blank set 0% and 100% transmittance. Take a %T reading every minute for at least 15 minutes so it may be convenient to wait until the room clock’s second
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Hydrated Crystals LAB PURPOSE: The purpose of this lab was to determine the percent of water in the given hydrate. MATERIAL/EQUIPMENT LIST: Crucible and cover Clay Triangle Crucible Tongs PROCEDURE: 1. First‚ the crucible and crucible cover were cleaned and dried. 2. The crucible and crucible cover were then placed on the clay triangle and heated with the Bunsen Burner for 3 minutes. 3. After this‚ the crucible and crucible cover
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Abstract-In this we use a piezoelectric crystal which gives variable voltage output depending upon the vibrations given on the crystal surface. This voltage is converted to current using suitable converter. Now the current is passed through a memristor‚ which has a corresponding resistance value. Whenever the current increases‚ the resistance value increases and the change in resistance is detected using a microwave generator connected at the end. Using the microwave level‚ an external device (similar
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time shifts and vivid imagery in painting an evocative portrait of time’s passage and its impact upon the individual. Both “At Mornington” and “The Violets” explore the connection between past and present as well as Harwood’s quest for a form of self fulfilment and inner peace as an ideal spiritual state informed by past physical experiences. “The Violets” structures its emotional concern around the act of time’s passing itself rather than focussing on what it is time is passing by. Whilst Harwood
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Crazy Crystal Creations: How to Grow the Best and the Largest Crystals Materials and Equipment * Lab notebook * Large bowl * Ice‚ enough to fill large bowl at least three times * Water * Thermometer * String * Scissors * Pencils (3) * Identical jars or large drinking glasses (3) * Pot with a lid * Borax (also called 20-Mule Team household cleaner); * Tablespoon * Plastic wrap‚ wax paper‚ or aluminum foil * Gloves‚ latex or similar style exam
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