Analysis of Soda Ash and Volumetric Analysis of a Carbonate-Bicarbonate Mixture Belardo‚ Pia Jobelle J. Department of Chemical Engineering‚ Faculty of Engineering University of Santo Tomas España‚ Manila February 27‚ 2013 Abstract The analyte used is the soda ash which is titrated with an HCl titrant‚ standardized by Na2CO3. The indicators used are phenolphthalein for basicity and methyl orange for acidity. The two volumes of the titrant are then used to calculate percent composition of
Premium Titration Sodium hydroxide Hydrochloric acid
alternative method of subtraction to find the mass of the sodium chloride directly. Start with a mixture of sand (SiO2)‚ sodium chloride (NaCl)‚ and ammonium chloride (NH4Cl)‚ and use these separation processes: sublimation filtration evaporation First "sublimate" the ammonium chloride (NH4Cl); heat the mixture until the ammonium chloride (NH4Cl) passes into the gaseous phase. The remaining solid will be a mixture of the remaining two compounds‚ sodium chloride (NaCl) and sand (SiO2); these compounds
Premium Sodium chloride Sodium Ion
Alexis Becker Pre-Lab Experiment 7 Avinash Pallagani Investigating Stoichiometry with sodium salts of carbonic acid 4/2/14 A summary of the concepts: The purpose of this lab is to better understand “stoichiometry”. We will be reacting sodium carbonate (NaHCO)3 and sodium carbonate (Na2CO3) with hydrochloric acid to produce sodium chloride‚ water‚ and carbon dioxide. The balanced chemical reaction looks like this: NaHCO3 + HCl = NaCl + H2O + CO2 CAUTION: Be especially
Premium Hydrochloric acid Sodium bicarbonate Sodium
Previously‚ Yeoh‚ & Wong (1993) reported the nutritional values of A. gangetica. Ogle et al.‚ 2001 reported the folate composition of A. gangetica. However‚ not much information on the utility of this leafy vegetable has been reported. To the best of our knowledge‚ there is no report on the optimization of polyphenols and their radical scavenging activities from the edible leaves of A. gangetica. Therefore‚ the main aim of this study is to optimize extraction conditions such as EtOH concentration
Premium Sodium Sodium hydroxide Sodium carbonate
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 1:
Free Chemical reaction Hydrochloric acid Sodium bicarbonate
Materials in Our Daily Life : 95 : 21 Materials in Our Daily Life The basic aim of science is not only to study and understand natural phenomena but also to use this knowledge to make our lives more comfortable. Science and technology have enabled us to develop more economical and convenient methods to recover useful materials from nature and to put them to various uses. Chemistry has enabled us to synthesize new materials which have desired properties‚ thus‚ making them even better than natural
Premium Sodium carbonate Glass Sodium hydroxide
(1 mole) I want 20 g of C4H9Br so; ( 20 x 74 ) / 95.9 = 15.5 g ‚ so : Production of 1-Bromobutane will require 15.5 g of Butan-1-ol to obtain the full amount at 70% yield. Chemicals Needed: * Butan-1-ol‚ 7.72 g. (C4H9OH) * Sodium Bromide (powdered). (NaBr) * Concentrated
Premium Sulfuric acid Sodium chloride Hydrochloric acid
materials needed for experiment which included: a. Small test tube with lip b. Large beaker c. Small graduated cylinder d. Large graduated cylinder e. One 9in balloon f. Citric acid g. Sodium bicarbonate h. Sodium chloride 2. To start the experiment: * Na2CO3(aq) + CaCl2. 2H2O(aq) à CaCO3(s) + 2NaCl(aq) + 2H2O * Put on your goggles. * Weigh out 1.0 g of CaCl2·2H2O and put it into the 100-mL beaker. Add 25 mL of distilled water
Premium Stoichiometry Sodium Sodium chloride
19 The scientist who is known as father of modern biology is Aristotle 20 The first person to see a cell under microscope was Robert Hooke 21 The smallest flowering plant is Worffia 22 The four blood groups were discovered by Karl Landsteiner 23 Sodium was discovered by Sir Humphry Davy 24 The atomic number of oxygen is Eight 25 The basic building blocks of proteins are Amino acids 26 The botanical name of the cotton plant is Gossipium Hirsutum 27 An Electroscope is used to Detect charges on a body
Premium Chlorine Sodium Sodium carbonate
sample of soda ash. BACKGROUND Sodium carbonate is an important industrial chemical. It is used in the manufacture of soap‚ glass‚ paper and as a source of alkalinity‚ that is‚ as a base. About half the sodium carbonate used in the United States is manufactured by the Solvay process. In this process‚ which is carried out at 0 °C‚ carbon dioxide is bubbled through a concentrated sodium chloride solution which is saturated with ammonia. Sodium hydrogen carbonate precipitates from the solution and
Premium Carbon dioxide Hydrochloric acid PH