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Engineering Chemistry Lab
Индия
Добавлен 14 фев 2020
Iron Oxide nanoparticles by precipitation method
Among chemical route, chemical precipitation method is a simple technique.
The method is given more priority due its low cost and easy industrialization with improved reproducibility.
Co-precipitation is a very facile and convenient way to synthesize iron oxide nanoparticles (Fe3O4) from aqueous Fe2+/Fe3+ salt solutions by the addition of a base at room temperature or at elevated temperature.
Note: the Videos are helpful for the students under VTU Curriculam.
The method is given more priority due its low cost and easy industrialization with improved reproducibility.
Co-precipitation is a very facile and convenient way to synthesize iron oxide nanoparticles (Fe3O4) from aqueous Fe2+/Fe3+ salt solutions by the addition of a base at room temperature or at elevated temperature.
Note: the Videos are helpful for the students under VTU Curriculam.
Просмотров: 12 111
Видео
Conductometric Determination of Acid Mixture
Просмотров 8764 года назад
Note: the Videos are helpful for the students under VTU Curriculam.
DETERMINATION OF VISCOSITY CO EFFICIENT OF LIQUID USING OSTWALD’S VISCOMETER
Просмотров 18 тыс.4 года назад
The property of liquid by which it retards or opposes motion between layers is called viscosity. The coefficient of viscosity is defined as “the tangential force per unit area required to maintain a unit velocity gradient between any two successive layers of a liquid situated unit distance apart”. The coefficient of viscosity is given by Poiseuiller’s formula.
Determination of percentage of copper in brass using standard sodium thiosulphate solution
Просмотров 11 тыс.4 года назад
Iodometry or iodometric titrations use a redox reaction where an oxidizing analyte is added to excess Iodide (I-) to form Iodine (I2) quantitatively. In this experiment, iodometric titration using a standard sodium thiosulfate solution is utilized to determine the percent of copper in an unknown brass sample. To do so, a specified unknown brass sample is digested to liberate copper into its sol...
Determination of Percentage of Available Chlorine in Bleaching Powder Iodometric Titration
Просмотров 44 тыс.4 года назад
Bleaching powder is Calcium hypochlorite [Ca(OCl)2] which combines with water liberating hypochlorite ion (OCl-), which further forms hypochlorous acid (HOCl) and acts as disinfectant. Percentage of chlorine in bleaching powder can be determined by iodometric method or by Orthotoulidine method. This experiment is useful to assess the quality of bleaching powder and also useful to estimate the a...
Etimation of Total Hardness of Water by EDTA Complexometric method
Просмотров 3,2 тыс.4 года назад
Hardness in water is due to the presence of dissolved salts of calcium and magnesium. It is unfit for drinking, bathing, washing and it also forms scales in boilers. Hence it is necessary to estimate the amount of hardness producing substances present in the water sample. Once it is estimated, the amount of chemicals required for the treatment of water can be calculated.
Potentiometric estimation of FAS
Просмотров 1 тыс.4 года назад
Potentiometric titration is a technique similar to direct titration of a redox reaction. It is a useful means of characterizing an acid. No indicator is used; instead the potential is measured across the analyte, typically an electrolyte solution.
Determination of pKa of weak acid
Просмотров 9414 года назад
Redox titrations can be carried out potentiometrically using platinum electrode (Indicator electrode) - calomel electrode (Reference electrode).
