Experiment # 4: Analysis of Soda Ash Experiment # 5: Volumetric Analysis of a Carbonate – Bicarbonate Mixture Submitted by: Eugenio December 2012 Department of Chemical Engineering University of Santo Tomas España‚ Manila Abstract Soda ash is the common name for sodium carbonate (NaCO3)‚ a chemical salt derived from carbonic acid. It is frequently used in manufacturing‚ industry‚ and in domestic chores. Glass production is one of the primary industrial uses for sodium carbonate. It is also
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point‚ it is best to heat up the sample slowly so that the alum sample would be the same temperature as the water. The sample also needs time to melt. 2. 0.787g Na2CO3 1.336g H2O Moles of Na2CO3 = 0.787/106 = 0.00742moles Moles of H2O = 1.336/18 = 0.0742 Molar Ratio = 10 moles of H2O‚ 1 moles of Na2CO3 Abstract: The purpose of this experiment is to find out the structure of the compound of alum through two tests. By determining the melting point of alum‚ and
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as the compound is being heated. A separatory funnel is used to separate the organic layer‚ and the product is recrystallized for TLC‚ GC/MS‚ and melting point analysis. Pre-Lab 1. What is the limiting reagent in step 1? What is the theoretical yield of amide 1 in figure 3? The amine is the limiting reagent. The theoretical yield is 4.81 grams of amide 1. 2. What is the theoretical yield of Lidocaine? Base calculations on 2‚6-dimethylaniline. The theoretical yield of lidocaine is 5.71 grams. 3. How
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HBr(aq) + MgO(s) KI(aq) + Pb(NO3)2(aq) Predict the products for the following chemical reaction. Write balanced molecular‚ complete ionic‚ and net ionic equations. Na2CO3(aq) + HCl(aq) ? Chapter 8 2.00 g of ammonia (NH3) are combined with 5.00 g of molecular oxygen to produce nitrogen monoxide and water vapor. Find the limiting reactant and theoretical yield for this reaction. If 2.50 g of NO are collected‚ what is the percent yield for this
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CHEM7113 - Atomic Spectroscopy ! !! Analytical Techniques "! Absorption (AAS) "! Flame AAS "! Vapour generation AAS furnace (electrothermal) AAS "! Graphite "! Emission (AES) "! ICP-AES "! AFS (atomic fluorescence) Some diagrams and Tables are reproduced from Skoog ‘Principles of Instrumental Analysis’‚ 5th/6th ed. 1 ! Atomic Spectroscopy ! !! Electronic transitions : UV - visible radiation excitation of outer-shell electrons of atoms in the gas phase energy
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Abstract Pyrorle-2-aldehyde and 1‚3-diaminopropane react under reflux to form a transition metal ion of Nickel(II)‚ that further more react with nickel acetate to form red crystals through condensation‚ the colour being constituded by the congugated bonds. These series of reactions synthesize the Schiff Base ligand and Nickel(II) complex of the Schiff base ligand. 0.36g of the Schiff base ligand is yielded and 0.1g of the nickel complex is yielded from the 0.36g Schiff base ligand and 0.5g nickel
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University of Santo Tomas Faculty of Pharmacy Organic Chemistry Laboratory RECRYSTALLIZATION OF ACETANILIDE USING WATER AS SOLVENT Lagarteja‚ M.C.B.; Lim‚ H.G.N.; Lizo‚ K.J.R.; *Macalino‚ M.D.L.; Macapala‚ C. 2D-Pharmacy‚ Faculty of Pharmacy‚ University of Santo Tomas Abstract Recrystallization is a technique used to purify organic solids. This method involves dissolving of a solute in a solvent and inciting the solute to produce a precipitate from a solution. In this experiment‚ acetic
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The objective of this experiment was to synthesize 3-nitrochalcone from 3- nitrobenzaldehyde. This was accomplished with a Diels-Alder reaction that utilized 3-nitrobenzaldehyde and acetophenone. After the reaction was completed‚ purification of the product was conducted using semi-microscale recrystallization. The melting point of the product was 136-141 oC‚ which is in the close vicinity of the literature melting point of 146 oC. The theoretical yield of 3-nitrochalcone was 0.253g and the
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Indigo Synthesis Author: Carolina Morales Group #1 Lab Partners: Jennifer Capeloto‚ Samantha Hoffman and Adriana Garibay Instructor: Saehan Park Chem. 152‚ Section 43 Date Work Performed: February 10‚ 2010 Date Work Submitted: February 24‚ 2010 Abstract: The percent yield of the color Indigo that is the color of blue jeans for the three trials was determined to be 13.50%‚ 15.30% and 14.80%. A series of experiments were performed to a cloth dye comparison. The absorbance
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molecular compound‚ Ions and ionic compound. 2 30 March- 3 April Chapter 3: Stoichiometry Calculation Chemical equation‚ atomic and molecular weight‚ mole‚ empirical and molecular formula‚ quantitative information from balanced equation‚ limiting reactant‚ theoretical yield. Experiment 1 – Apparatus‚ calibration and safety in a laboratory Tutorial 1 3 6 April- 10 April Chapter 4: Aqueous Reaction and Solution Stoichiometry Solution composition‚ properties of solute in aqueous solution‚ ionic and
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