Abstract By using acid-base titration‚ we determined the suitability of phenolphthalein and methyl red as acid base indicators. We found that the equivalence point of the titration of hydrochloric acid with sodium hydroxide was not within the ph range of phenolphthalein’s color range. The titration of acetic acid with sodium hydroxide resulted in an equivalence point out of the range of methyl red. And the titration of ammonia with hydrochloric acid had an equivalence point that was also out of
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To produce dye based to the coupling of diazonium. 2. To understand the characteristic of dye orange II. INTRODUCTION The first dye was introduced by William Henry Perkin on 1856. It can be produced by the coupling of diazonium sulfanilic acid with nafthol in alkaline solution.. This was the common method used to produce dye nowadays. In this experiment‚ dye produced was the orange II. Azo compound is compound that contain azo group (-N=N-) between the conjugated aromatic ring and absorb
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CS&T Coursework 1 DEGREE Course:COMP1166 Computing and Network Systems Coordinator: 2013/13 Coursework ID: Contribution: 50% of course Deadline Date: 14/11/2013 This coursework should take an average student who is up-to-date with tutorial work approximately 50 hours Learning Outcomes: C Specify a set of PC components to design a system to solve a specific problem. Plagiarism is presenting somebody else’s work as your own. It includes: copying information directly from
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Experiment 7 INVESTIGATING STOICHIOMETRY WITH SODIUM SALTS OF CARBONIC ACID Introduction In this experiment we are going to get a better understanding of chemical stoichiometry. We are going to be reacting sodium bicarbonate (NaHCO3) and sodium carbonate (Na2CO3) with hydrochloric acid (HCl). To start off the mass of two unknown substances (being the sodium bicarbonate and sodium carbonate) will be taken. We will need to construct balanced equations for both of the reactants with the HCl and
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the reaction will occur) has been proven correct and it proves the theory right. From the results‚ we can see this‚ as the iced water (10 degrees) had the slowest rate of reaction at 1.10 minutes. Then the room temperature water (19 degrees) was tested and had a slightly better rate of reaction at 1.09 minutes. Then last of all‚ we tested the boiling water (63 degrees) which had a large improvement from the last two with a rate of reaction of 43.5 seconds. This showing development in the rate of reaction
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3. Add exactly 5.0 mL of distilled water to each test tube (assume 1.0 g/mL for water). 4. Connect the probe to the computer interface. Prepare the computer for data collection by opening the file “12 Temp and Solubility” from the Chemistry with Vernier folder of Logger Pro. 5. Fill a 400 mL beaker three-fourths full of tap
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Module Leader: Dr. Jatin Pancholi Coursework 2013-14 Contents 1. Instructions (READ THIS FIRST) 1 2. Coursework – ESSAY 2 3. Sample Title Page 3 4. Student guide to paraphrasing 4 5. Referencing and Citation Style 6 6. How to submit on MyUniHub Moodle using Turnitin 18 1. Instructions (READ THIS FIRST) 1) Coursework must be submitted in a computerised A4 page-sized Microsoft Word format in “Online Submission of ACC2130 Coursework” using “Turnitin” on MyUniHub Moodle. There
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‘Kinetics’ is the study of chemical reactions. The speed of a reaction can vary depending on many variables such as the nature of the reactants‚ particle size‚ concentration and temperature. For a chemical reaction to occur‚ there must be a collision between reactants. The reaction rate is slower when the reactants are large and complex molecules because it takes longer for the molecules to combine together creating a chemical reaction. More than 2000 years ago‚ Democritus‚ who was a philosopher
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Chemistry Gen: Course Description Year 2 PART - II CGT 21a Unit I. Basic physical chemistry I * Gaseous state: Gas laws‚ kinetic theory of gas‚ collision and gas pressure derivation of gas laws from kinetic theory‚ average kinetic energy of translation. Boltzmann constant and absolute scale of temperature‚ Maxwell’s distribution law of molecular speeds (without derivation)‚ most probable‚ average and root mean square speed of gas molecules‚ principle of equipartition of energy (without
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Program: Foundation In Science Unit code: FHSC 1214 Unit description: Fundamentals of Cell Biology Year and trimester of study: 2013‚ trimester 1 Title of lab report: Practical 2 Investigation of Action of Saliva and 3 M Hydrochloric Acid in Two Carbohydrate Solutions Lecturer’s name: Mr. Paul Davidson Discussion The name of enzyme involved in this experiment is salivary amylase‚ which presents in our saliva. Salivary amylase catalyses
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