Standardization of hydrochloric acid by sodium carbonate Concentrated hydrochloric acid is roughly 11 M. Pour out into a measuring cylinder about 2 cm3 of concentrated hydrochloric acid. Transfer it to a 250 cm3 flask and make up to the mark with water. Shake well. Put some pure sodium hydrogen carbonate or anhydrous sodium carbonate into an evaporating dish and heat gently over a low flame for about fifteen minutes‚ stirring continuously. Take care not to heat the mass too strongly or fusion
Premium Sodium carbonate Carbon dioxide Sodium bicarbonate
Date: 28/11/13 EVALUATION OF THE EFFECT OF SODIUM CHLORIDE ON ONION EPIDERMAL CELLS INRODUCTION A living plant cell will shrinks or swells depending on the solute concentration of the cell in relation to the solute concentration of the fluid surrounding the cell (1). It follows that water will move from a region of high water concentration to a region of low water concentration therefore‚ if a cell is placed in a hypertonic solution water will move from the cell into the solution until the
Free Cell Microscope Sodium chloride
subsequently cooled either in open air‚ slowly in the furnace or quenched in furnace oil. Hardness of the heat treated and without heat treated specimen was measured in the Rockwell Scale. Corrosion resistance of the sample was evaluated in 3.5 % sodium chloride solution by weight loss method. It was found that specimen heat-treated at 500 °C showed higher hardness and corrosion resistance compare to that heat-treated at 300°C and 600 °C. Oil quenching specimen provided maximum hardness and corrosion
Premium Aluminium alloy Steel Furnace
Chemistry Write-Up The Thermal Decomposition of Sodium Hydrogen Carbonate Aim: When Sodium Hydrogen Carbonate (NaHCO3) is heated‚ Carbon dioxide and water are given off to leave a white powder. The aim is to find the equations for this reaction. Hypothesis: The experiment will prove which of the equations below is true. It will tell us whether Sodium Carbonate is produced or Sodium Oxide. 2NaHCO3 Na2CO3 + CO2 + H2O 2NaHCO3 Na2O + 2CO2 + H2O Variables: Independent: Original
Premium Carbon dioxide Sodium hydroxide Sodium
the knowledge of topic IV and have some experience in handling apparatuses such as pipette‚ burette‚ and volumetric flask before carrying out the school-based assessment. This experiment involves two tasks: 1. Dilution of sodium carbonate solution 2. Titration of diluted sodium carbonate solution with a standard solution of hydrochloric acid Students should perform the experiment individually. In order to facilitate large class size‚ both the side benches and the teacher bench may have to be used
Free Titration PH indicator PH
dehydrated by water removal. In this experiment‚ norbornene is the alkene and exo-norborneol is the alcohol product. The purpose of this procedure was to form a pure sample of exo-norborneol by reacting norbornene with an acid and excess water. Anhydrous sodium sulfate is used in order to remove water from the final product.
Premium Chemistry Sodium chloride Concentration
Saline Lab Purpose The purpose of this experiment is to find out the molarity of each solution while finding out how many grams of sodium chloride we have. Materials 1. Wire gauze 2. tongs 3. Burner 4. balance 5. Matches 6. hot hands 7. ring stand 8. ring clamp 9. graduated cylinder 10. evaporating dish Procedure Steps: 1. Mass the evaporating dish 2. Record how many mL of solution you add into the evaporating
Premium Water Liquid Solvent
usually a metal) + name of acid. e.g. : Sulphuric acid + SodiumSodium sulphate + Hydrogen Hydrochloric acid + calcium carbonate calcium chloride + CO2 + H2O Practice Questions on Reaction of Acids Complete the word equation(s) below and write its equivalent balanced chemical equation(s). 1. ___________________ + zinc _________ chloride + ____________________ Chemical equation: ___________________________________________________________________________________ _________
Premium Ammonia Acid Sodium chloride
Chemistry 2283g Experiment 1 – Alkyl Halides EXPERIMENT 1: Preparation and Reactivity of Alkyl Halides Relevant Sections in the text (Wade‚ 7 ed.) • 6.7 (p. 228) Reactions of alkyl halides • 6.8 – 6.12 (p. 229 – 242) The SN2 reaction: generality‚ factors affecting SN2 reactions‚ substrate reactivity‚ mechanism • 6.13 – 6.14 (p. 243 – 249) The SN1 reaction: mechanism‚ stereochemistry General Concepts The most common of the variety of methods available for preparing alkyl halides is the replacement
Premium Alcohol Sodium chloride Functional groups
precipitation reaction. Salt Solubility in water Li+‚ Na+‚ K+‚ NH4+ All salt dissolve in water Nitrate‚ NO3- All nitrate salt dissolve in water Chloride All chloride salt dissolve dissolve in water except; PbCl2 - lead(II) chloride (dissolve in hot water) AgCl - argentums/silver chloride HgCl - hydroargentum chloride‚ mercury chloride Sulphate All sulphate salt dissolve in water except; PbSO4 ‚ BaSO4 ‚ CaSO4 Carbonate All carbonate salt not dissolve in water except;
Premium Sodium chloride Solubility Chlorine