Soda Ash Analysis and Volumetric Analysis of a Carbonate-Bicarbonate Mixture
Soda Ash Analysis and Volumetric Analysis of a Carbonate-Bicarbonate Mixture
De Guzman, Danica Justine R.
Department of Chemical Engineering, Faculty of Engineering
University of Santo Tomas Espana, Manila Abstract Titration is a laboratory method in which the endpoint of a reaction is determined quantitatively. In this experiment, the amount of soda ash present in a sample was determined and the alkalinity reported as it was titrated using HCl as the titrant. Also, the percentage amount of Na2CO3 and NaHCO3 present in the sample was determined at the end of the experiment. Introduction Soda Ash (Na2CO3) or sodium carbonate is commonly used as a cleaning agent and known as “washing soda”. It was found to be alkali and has a high pH in concentrated solutions. It is soluble in water but its solubility decreases slightly as the temperature increases above 35.4○C or 95.7○F. It is used in many different fields such as manufacturing, at home or in industries. It can be produced either synthetically or naturally. Trona, a mineral that can be found in evaporated lake beds, is a common natural source of production. It can also be found in some salt waters. It is also a safe substance that can be handled without extraordinary precautions but when extracting this in laboratories, a prolonged exposure to this powder could be harmful. When it comes in contact with the eyes, it can irritate it and when it is ingested, it corrodes the stomach lining. Methodology
The experiment is required for titration using an HCl solution. First the titrant, HCl, was prepared in which a 4.2 mL concentrated HCl was added to a 500.0 mL of distilled water. It was stirred and transferred to an Arrhenius storage bottle. After preparing, it was then standardized in which the prepared solution was used as a titrant and a standard NaOH as the analyte. An indicator methyl orange was added by adding 3 drops to the analyte then it was titrated until the orange-colored
De Guzman, Danica Justine R.
Department of Chemical Engineering, Faculty of Engineering
University of Santo Tomas Espana, Manila Abstract Titration is a laboratory method in which the endpoint of a reaction is determined quantitatively. In this experiment, the amount of soda ash present in a sample was determined and the alkalinity reported as it was titrated using HCl as the titrant. Also, the percentage amount of Na2CO3 and NaHCO3 present in the sample was determined at the end of the experiment. Introduction Soda Ash (Na2CO3) or sodium carbonate is commonly used as a cleaning agent and known as “washing soda”. It was found to be alkali and has a high pH in concentrated solutions. It is soluble in water but its solubility decreases slightly as the temperature increases above 35.4○C or 95.7○F. It is used in many different fields such as manufacturing, at home or in industries. It can be produced either synthetically or naturally. Trona, a mineral that can be found in evaporated lake beds, is a common natural source of production. It can also be found in some salt waters. It is also a safe substance that can be handled without extraordinary precautions but when extracting this in laboratories, a prolonged exposure to this powder could be harmful. When it comes in contact with the eyes, it can irritate it and when it is ingested, it corrodes the stomach lining. Methodology
The experiment is required for titration using an HCl solution. First the titrant, HCl, was prepared in which a 4.2 mL concentrated HCl was added to a 500.0 mL of distilled water. It was stirred and transferred to an Arrhenius storage bottle. After preparing, it was then standardized in which the prepared solution was used as a titrant and a standard NaOH as the analyte. An indicator methyl orange was added by adding 3 drops to the analyte then it was titrated until the orange-colored
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