tube on the rack. 19. Then add hydrochloric acid to break down the sucrose in the apple juice. 20. Do the same for
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complexation reaction‚ which usually involves Lewis acids and bases. EDTA in complexation reactions serves as a chelating ligand. The base‚ EDTA‚ will bind to the metal ions‚ which serve as the Lewis acid‚ thus playing a role as a ligand. The indicators used in EDTA titrations are metal ion indicators. Metal ion indicators work by the presence of absence of metal ions. Just like EDTA‚ the metal ion indicators will bind with metals. When the titrations begin‚ Mg2+ will be formed in a complex with the
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Plan On Acids & Bases May 25‚ 2006 Table of Contents I. General Objectives Page 3 II. Learning Outcomes Page 4 III. Assessment‚ Grading & Resources Page 5 IV. Tending to different Learning styles Page 7 V. Schedule Page 8 VI. Appendix 1 Page 20 Acids and bases Unit plan Grade 12 General Objectives: ▪ Introduce pH‚ acid and base definition ▪ Discuss acid‚ base‚ strong
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form alkaline solution Slightly dissolve in water and form alkaline solution Insoluble in water Insoluble in water Dissolve in water and form acidic solution Dissolve in water and form acidic solution pH of aqueous solution 14 9 7 7 1 3 Acid-base nature Basic Basic Amphoteric Acidic Acidic Acidic Conductivity of liquid Conductor Conductor Conductor Insulator Insulator Insulator Solubility in hexane Insoluble Insoluble Insoluble Soluble Soluble Soluble
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the effect of concentration of thiosulphate on the rate of reaction between sodium thiosulphate and hydrochloric acid. Introduction: Word Equation for the reaction: Balanced Symbol Equation for the reaction: Observations during the reaction: • A yellow precipitate of Sulphur starts to form and the reaction mixture goes cloudy. • A colourless‚ poisonous gas of sulphur dioxide is given off. • Sodium Chloride (salt) and Water also form. The salt dissolves in the solution‚ and
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Titration CalculationsBefore you go any further‚ check that you can do the following… Calculate: Relative molecular masses from a given chemical formula Calculate: Number of Moles from the mass/RMM equation Manipulate: The number of moles equation to get the form you require. When you are confronted by a Titration calculation the first rule is: DON’T PANIC! The Second rule is read through the question very carefully.The Third rule is read through the question carefully again! We are now going to
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BTEC Chemistry – Titration experiment I – Standard Solution Prep Preparation of a standard solution of sodium carbonate Anhydrous sodium carbonate is a suitable chemical (primary standard) for the preparation of a standard solution. Standard Solutions are critical in chemistry because you need to have solutions with an EXACT known concentration and volume. Chemicals/Materials: solid sodium carbonate (Na2CO3) distilled water Apparatus: 250cm3 volumetric flask 250cm3 beaker Glass
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MANUFACTURE OF ACRYLIC ACID BY PARTIAL OXIDATION OF PROPYLENE Submitted by‚ P.V.R.Krishna Prasad. M.Prem Kumar. ACKNOWLEDGEMENT We hereby place our sincere thanks to Dr.R.KARTHIKEYAN‚ Head of the Department of Chemical Engineering ‚ Faculty of Engineering and Technology‚ S.R.M University and the faculty members of Chemical Engineering Department for their full hearted co-operation and encouragement for the completion of this project. We extend our thanks to our Project guide Mr
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Determination of the Solubility Product Constant of Calcium Hydroxide Introduction The equilibrium constant for the solubility equilibrium between an ionic solid and its ions is called solubility constant [1] ‚ Ksp of the solute. For example‚ the solubility product is defined by MxAy(s) ⇋xM(aq)y++ yA(aq)x- (1) Where M is the metal cation‚ A is the anion‚ x and y are the corresponding charges of the ions. The equilibrium expression is Ksp=[MY+]x[AX-]Y (2)
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Synthesis of Salicylic Acid Experimental Data: 1. Mass of methyl salicylate used: 0.232 g 2. Theoretical yield of salicylic acid: 0.211 g 3. Volume H2SO4 added‚ with units (drops or mL): 3mL 4. Mass of crude salicylic acid obtained: 0.250 g 5. Volume of water used as recrystallizing solvent: 2 mL 6. Mass of purified salicylic acid: 0.134 g 7. Percent yield of purified salicylic acid from reaction: 63.5% 8. Melting point of purified product: 158-160 oC 9. Name of NMR solvent used and
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