"Hydrochloric Acid" Essays and Research Papers

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Milk of Magnesia Titration

Chemicals Milk of Magnesia 0.2 Hydrochloric Acid (HCL) Phenolphthalein ( C2OH4O4 ) AIMS The aim of this titration was to calculate the amount of Magnesium Hydroxide (Mg OH 2) in a 5ml teaspoon of milk of magnesia and compare the result with the manufactures stated value which is 415g per 5ml suspension PROCEDURE The equipment was rinsed out in water 25ml of milk of magnesia was diluted into; 250ml of water Hydrochloric acid ( HCL ) was made up in a flask to 0...

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How Temperature Affects Reaction Rate

affect Reaction Rate. The experiment will be performed by heating equally sized and weighted lime stones with equal amounts and concentration of Hydrochloric acid at different temperatures. The temperatures will be 35˚C and 40˚C. We will measure the reaction rates by observing gas release of the reaction between lime stones and Hydrochloric acid. The amount of gas release at different temperatures will be compared afterwards to see if temperature can affect Reaction Rate. Hypothesis: ...

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Determining the Thickness of Zinc on a Piece of Galvanized Metal

galvanized metal. It also aimed for the students to be introduced to the reactivates of metals with acids as well as for them to develop some feeling for the size of an atom. In determining the thickness of the zinc coating on the metal, students, knowing the density of zinc, calculated the area (A) of the metal covered with zinc and the mass of zinc removed after it is reacted with HCL, hydrochloric acid. Given the radius of a zinc atom, on the other hand, students can also calculate the thickness of...

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solubility of organic compounds

Forces Sucrose Water Hydrogen Bonding & London Dispersion Forces Class N (Neutral) Compounds Benzyl Alcohol Sulfuric Acid Hydrogen Bonding & London Dispersion Forces Benzaldehyde Sulfuric Acid Ion – Induced Dipole & London Dispersion Forces Class B (Basic) Compounds Aniline Hydrochloric Acid Ion – Dipole & London Dispersion Forces Class A (Acidic) Compounds Benzoic Acid NaOH Ion – Induced Dipole & London Dispersion Forces NaHCO3 Ion – Induced Dipole & London Dispersion Forces Phenol ...

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Measuring the Solubility Product of Ca OH 2

Measuring the Solubility Product of Ca(OH)­2 Purpose: The purpose of this investigation is to find the solubility product (Ksp) of Ca(OH)2 by titrating the hydrochloric acid with calcium hydroxide and using their entities to find the concentration of Ca­2+ and OH- ions. Materials: Refer to lab sheet “Measuring the Solubility of Ca(OH)2” (handout) Method (Procedure): Refer to lab sheet “Measuring the Solubility of Ca(OH)2” (handout) Observations Trial 1 Trial 2 Initial burette reading 0mL 17.75mL...

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Observations Of Physical And Chemical C

Well Chemical #1 (4 drops) Chemical #2 (4 drops) Observations: Chemical Change (Y/N) A1 NaHCO3 Sodium Bicarbonate HCl Hydrochloric Acid A2 NaOCl Sodium Hypochlorite KI Potassium Iodide Observation 1: + Add 2 drops of starch Observation 2: A3 KI Potassium Iodide Pb(NO3)2 Lead Nitrate A4 NaOH Sodium Hydroxide C20H14O4 Phenolphthalein A5 HCl Hydrochloric Acid C20H14O4 Phenolphthalein A6 NaOH Sodium Hydroxide AgNO3 Silver Nitrate B1 AgNO3 Silver Nitrate NH4OH Aqueous Ammonia Observation...

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Hess Law

heat is actually a “heat of solution” since no true chemical reaction occurs): NaOH (s) ---> Na+ (aq) OH¯ (aq)H1 2) Solid sodium hydroxide is dissolved in a hydrochloric acid solution: H+ (aq) Cl¯ (aq)NaOH (s) ---> Na+ (aq) Cl¯ (aq)O (l)H2 3) A solution of sodium hydroxide is mixed with a hydrochloric acid solution: H+ (aq) Cl¯ (aq)Na+ (aq) OH¯ (aq)---> Na+ (aq) Cl¯ (aq)O (l)H3 Objectives: - To determine the heats of reaction for several simple...

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Composition of calcium carbonate in egg shell

carbonate in egg shell Equipment: Pestel Mortar Conical flask Egg shell Measuring cylinder Balance Hydrochloric acid (1 mol/dm cube) Sodium hydroxide (1 mol/ dm cube) Pipette Burette Clamp Beaker Phenolphthalein Safety: Wear eye goggle during an experiment because of the strong hydrochloric acid In case, if there is an acid contact your skin, quickly wash your skin with water Pour acid on body level so it does not interact with you face Independence variable: Mass of egg shell: we...

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Physical and Chemical Change Lab

separate test tubes. Add 10 drops of 6M hydrochloric acid to each test tube. Feel the bottom of each test tube and record your answer. 11. Put half of the sucrose sample into a test tube. Caution: Be sure tube is cool before handling it. After test tube is cool, use a spatula to scrape residue and clean test tube. Examine residue and test its solubility in water. 12. Transfer sodium hydrogen carbonate sample to test tube. Add 5 drops of 6M hydrochloric acid. Touch tube at bottom with hand and...

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Ib Eggshell Report

Independent | Volume of titrated excess of hydrochloric aced | cm3 | Controlled | Volume of hydrochloric acid Weight of eggshell Temperature Amount of phenolophateine | cm3 g oC drop | Uncontrolled | Purity of solutions Biological diversity of eggs Pressure | - - hPa | Equipment: buret 5 beakers 50 cm3 baguette 1 plastic pipette balance clamp 2,5 g of eggshell mortar 100 cm3 of 1moldm-3 hydrochloric acid ap. 70 cm3 of 1moldm-3 sodium hydroxide 1...

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