Experiment N | Kinetics of the Depolymerization of Diacetone Alcohol via Basic Catalysis | | Ingrid Tafur -5672578 | 2/11/2011 | CHM233O Partner: Laura Marrongelli Demonstrator: Cheryl McDowall Objective The rate constant of the depolymerization of diacetone alcohol via basic catalysis was determined by monitoring the change in volume as a function of time at constant temperature of a pseudo first order reaction where the species in excess was sodium hydroxide. This was accomplished
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Simultaneous Determination of Several Thermodynamic Quantities: K‚ ∆G°‚ ∆H°‚ and ∆S° Submitted by: Feldan P. Villarta Submitted to: Mrs. Gloria Jesusa D. Baltazar Chemistry 73 (Laboratory) August 11‚ 2014 Simultaneous Determination of Several Thermodynamic Quantities: K‚ ∆G°‚ ∆H°‚ and ∆S° Feldan P. Villarta I. INTRODUCTION The solubility product constant‚ Ksp‚ is the equilibrium constant for a solid substance dissolving in an aqueous solution. It represents
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RUNNING HEAD: Synthesis of Banana Oil Abstract A reflux apparatus was assembled with a water-cooled condenser and a drying tube. Isopentyl alcohol‚ glacial acid sulfuric acid is added to a 25 milliliter round bottom flask and attached to the reflux apparatus. The mixture was boiled‚ the extracted first using water followed by aqueous sodium bicarbonate. The mixture was dried using anhydrous granular sodium sulfate. After dried‚ the sample was placed in a distillation apparatus and heated. This
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buffer to make it to pH 6. Then‚ the buffer was transferred to a 100mL graduated cylinder‚ and 25mL of distill water was added to the buffer. Next‚ the buffer was transferred to 125 mL glass jar and was labeled 0.5M Tris buffer‚ pH 6.8. The top of the flask was sealed with Parafirm and was placed in the refrigerator for next day lab. Other group was prepared other buffers that needed for this experiment. They are 0.5M Tris pH 6.8‚ 1x-running buffer‚ and transfer buffer. Day 2: Buffer preparation and
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NAME: Samantha Cruickshank ID# 620040626 Name of lab partners: Krystal Ramsaroop‚ Kristin Sigh‚ Debbion Sylvester‚ Vallene Bernard Demonstrator: Adanna DATE (of lab session): Week 7 (Tuesday 3rd‚ 2015) Course Code BIOL 1362 Title Of Lab: Estimation of Ascorbic acid Aims: To determine the mean ± S.D. ascorbic acid equivalence per 1mL of dye. To determine the ascorbic acid content in mg per mL of canned orange juice. Introduction: Vitamin C is highly water-soluble and has
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← Sulfuric Acid (H2SO4)(aq) ← Ammonium Hydroxide (NH4OH)(aq) ← Hydrochloric Acid (HCl)(aq) ← Zinc powder ← 2 100 ml Beakers ← 250 ml Waste Beaker ← 400 ml Beaker ← Filter paper ← Plastic Dropper ← 250 ml Erlenmeyer Flask ← Forceps ← Plastic Funnel ← Red Litmus paper ← Spatula ← Steel Wool ← Glass stirring rod ← Small test tube ← Tongs ← Wash bottle ← Watch Glass Procedure: I. Weigh a pre-1982 penny (should be around
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group (.2M‚ .4M‚ .6M or .8M)‚ an Erlenmeyer flask and corresponding cork‚ one or two skinless potato cores‚ scale to mass potato cores‚ paper towels and tables to record results. ii. Pour assigned solution into the Erlenmeyer flask ~200mL iii. Measure and record the mass of potato cores‚ zeroing the mass with paper or weighing tray on it‚ before massing the cores. iv. Submerge your cores entirely in the solution‚ cork the flask‚ and let sit 24-48 hours.
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Chapter I Introduction A.) Background of the Study: The Acids‚ bases and salts in the pH range are among the most important chemical compounds used by chemists. For instance‚ hydrochloric‚ phosphoric and citric are acids used to make mineral stain removers‚ toilet bowl cleaners‚ metal cleaners and rust removers. A variety of maintenance chemicals contain these compounds. Alkali maintenance chemicals like degreasers‚ oven cleaners and drain openers contain bases such as Sodium Hydroxide (NaOH)
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cellular respiration will decrease. Materials and Methods The materials used in this experiment were: 12 beetle larvae (mealworms)‚ 1 – 250 ml Erlenmeyer flask‚ a ring stand and clasp‚ a Data logger‚ an AC power adapter for the data logger‚ forceps‚ filter paper‚ 95% ethanol solution and a dropper. The experiment began by adding 12 live mealworms to the flask. The data logger was then calibrated and used to take an initial CO2 output reading. Readings were again taken every minute for a total of 15
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ABSTRACT: The electrophilic aromatic substitution reaction is the attack of a benzene ring on an electrophilic species resulting in the substitution of a proton with a functional group. The electrophilic aromatic substitution reaction nitration is used to nitrate methyl benzoate and acetanilide with a nitronium ion. Crystallization was used to purify the product. The melting point was used to determine its purity and the regiochemistry of the products. The methyl benzoate reaction product‚ methyl
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