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Stoichiometry Investigation

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HYPOTHESIS; This investigation involves the comparison of 3 different bases which might be the active elements of some antacids; drugs which are taken to relieve heartburn. As such, the sets of experiment will involve subjecting the 3 bases to the same conditions. In fact, for a set of experiments, the variables of surface area, concentration, amount, temperature and catalysis will be controlled. Another controlled variable is the volume and concentration of the acid. The aim of this investigation is to determine which of the 3 bases can be ideal for which conditions relating to heartburn. Stoichiometry is largely employed to ascertain that for the masses of bases used, the corresponding volume of nitric acid would be excess. The 30,0cm3 used …show more content…

3.0 METHODOLOGY; 3.1. SAFETY AND ETHICAL CONSIDERATIONS; The use of concentrated acid posed danger to the skin because of the corrosive nature of the acid. Therefore it was best to use latex gloves to cover the hands. In addition, it could be considered unwise in economic terms to use concentrated acid, however, it was necessary for the reactions to reflect high and easy to handle values of temperature change. The efficient use of chemicals (stoichiometry employed to calculate appropriate amounts of chemicals used (saves chemicals). In order to be economical with the use of the chemicals, stoichiometric calculations were carried out to find the appropriate amounts (smallest yet effective) of chemicals to be used. …show more content…

A spatula was used to draw a sample of Magnesium hydroxide powder from its bottle onto the piece of paper now on the scale; and 3.00g of base was measured out. The 3.00g sample was poured into a dry polystyrene cup. A 30 cm3 sample of Nitric acid was then measured out using a 200 ml measuring

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