Lab Report: Acid-Base Titration Brianna Morrison Chemistry 111 October 11‚ 2010 Aim: To standardize a solution of the base sodium hydroxide using oxalic acid dihydrate as primary standard acid. Also to determine the amount of sodium hydroxide it takes to titrate a weighted sample of an unknown acid. Procedure: As outlined in instructions provided‚ no changes were made to the procedure. Data: Part A: Trial 1: Amount of H C O 2H O: 0.96 g Buret before titration: 3.6
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EXPERIMENT 3: INTRODUCTION TO TITRATION – DETERMINATION OF THE MOLARITY AND CONCENTRATION OF SULPHURIC ACID BY TITRATION WITH A STANDARD SOLUTION OF SODIUM HYDROXIDE INTRODUCTION Reaction of acid and base is one of the most common reaction in chemistry. This reaction is also widely known as neutralization. In this experiment‚ we used titration technique which involves accurately measuring the volume of a solution required to react with another reagent. An indicator must be used to determine the
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Liquid Crystals from Coconut Oil Fatty Acids - Investigatory Project Liquid Crystals from Coconut Oil Fatty Acids Abstract Liquid crystals are fluids that are between the solid and conventional liquid phases. Liquid crystals are in widespread use‚ especially in optical technologies. They are synthesized by combining fatty acids with cholesterol. This study aims to utilize coconut oil as an alternative source of fatty acids for synthesizing liquid crystals since coconut is cheap and abundant
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Photolytic Degradation of Flupentixol-Melitracen Chapter One Introduction 1 Photolytic Degradation of Flupentixol-Melitracen 2 1. ANTIPSYCHOTIC 1.1 Antipsychotic An antipsychotic also known as neuroleptic is a tranquilizing psychiatric medication which is used to treat psychosis‚ schizophrenia and bipolar disorder. Now it is increasingly being used to treat the non-psychotic disorders. Psychosis disorder included delusions or hallucinations. Delusion is the pathological condition
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com/fatherofchemistry Objective To classify a carbonyl compound by a simple test and to identify it by the precipitation of a derivative. Principle In this experiment‚ the unknown compound is either an aldehyde or a ketone from Table 90. In the first part‚ on undergoing Tollen’s & Fehling’s tests‚ ketone will have no reaction. In the second part‚ by preparing a derivative of the compound with 2‚4-dinitrophenylhydrazine‚ the sharp melting point can be used to identify the
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Based on the data from the riboflavin spectrum scan‚ the maximum absorbance wavelength for this compound is 446 nm. This was the point between 390 nm and 500 nm at which the absorbance value (0.72) was the highest. A blank tube that has the components of the solution being examined except for the compound of interest is then used in combination to provide an even more accurate reading. Then‚ by using Beer’s Law‚ the molar extinction coefficient for riboflavin was able to be calculated: 14‚400 L/(moles*cm)
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1:2:3 molar ratio of the three reactants‚ a reaction temperature of 150 °C and a reaction time of 8 h‚ in which 3a was obtained in 97% yield (Entry 19‚ with 1a as the limiting reagent). We explored the effect of reaction’s atmosphere and we changed it from oxygen to air and nitrogen‚ which showed that under air atmosphere‚ the yield decreased to 6%‚ and no producd was detected under nitrogen atmosphere (Entries 9 and 20). Increasing the temperature beyond 150 °C led to a decrease in yield due to the
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Chamberlin Date: 29 April 2017 Experiment Title: Acid-Base Titration Abstract: Vinegar is a common household item containing acetic acid as well as some other chemicals. This experiment is designed to determine the molar concentration of acetic acid in a sample of vinegar by titrating it with a standard solution of NaOH. CH3COOH(aq) + NaOH(aq) -> CH3COONa(aq) + H2O(l) By adding the sodium hydroxide‚ which is a basic solution‚ to the acetic acid‚ which is an acidic solution‚ a neutralization
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batches during the second round of copying. These colors are also associated with the bases; they help the different bases to stand out. Strands that end in T are blue‚ end in A are red‚ end in G are yellow‚ and end in C are green. As the pieces emerge from the gel‚ the sequencer’s laser identifies the fluorescence of the pieces and links it to the base it is associated with. The laser hits the shortest piece of DNA first‚ and makes its way to the longest. Since the color is only associated with the last
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Determination of Ka for a Weak Acid Introduction In the experiment preformed the objective is to titrate a weak acid with a strong base. In a titration of a weak acid with a strong base the titrant is the strong base and the analyte is a weak acid. The reaction that will occur is the direct transfer of protons from the weak acid to the hydroxide ion. The data gathered will be represented on the titration curve‚ a graph of the volume of titrant being the strong base plotted against the pH .The
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