The purpose of this experiment was to evaluate the stoichiometric relationship between the testing agents and to identify the products formed. The relationship was found by completing three acid and base neutralization reactions using phosphoric acid, which is a triprotic acid, with different volumes of sodium hydroxide.
Introduction
When looking at the coefficient of balanced equations, stoichiometry is seen. Coefficients represent the number of moles, equivalent to the mass of an atom, of the products and reactants. Stoichiometry was demonstrated in this experiment to determine the relationship between the testing agents. A polyprotic acid or base is used because it is able to react with varying molar equivalents of sodium hydroxide.
In …show more content…
The different formula weights as a result of the use of different volume of base corresponds with the differences in the masses of the salts in each reaction. Reaction one yielded the greatest amount of product and had the highest molecular weight. Reaction three yielded the least amount of product and had the lowest molecular weight. The data obtained in this experiment are comparable to the theoretical formula weights with reaction one being the most accurate out of the three …show more content…
As a result, three different salts came from the three reactions. The salts were identified as sodium phosphate in reaction one, sodium hydrogen phosphate in reaction two, and sodium dihydrogen phosphate in reaction three. The mass of the salt, the (experimental) formula weight of the salt, the empirical formula of the salt, and the name of the salt were found in this experiment through each reaction. The errors of this experiment should be taken into account. It is significant when determining why the mass of the salt was not exactly on par with the theoretical formula weight. The errors should be taken into account if the experiment is to be carried out again in order to ensure more precise
Introduction
When looking at the coefficient of balanced equations, stoichiometry is seen. Coefficients represent the number of moles, equivalent to the mass of an atom, of the products and reactants. Stoichiometry was demonstrated in this experiment to determine the relationship between the testing agents. A polyprotic acid or base is used because it is able to react with varying molar equivalents of sodium hydroxide.
In …show more content…
The different formula weights as a result of the use of different volume of base corresponds with the differences in the masses of the salts in each reaction. Reaction one yielded the greatest amount of product and had the highest molecular weight. Reaction three yielded the least amount of product and had the lowest molecular weight. The data obtained in this experiment are comparable to the theoretical formula weights with reaction one being the most accurate out of the three …show more content…
As a result, three different salts came from the three reactions. The salts were identified as sodium phosphate in reaction one, sodium hydrogen phosphate in reaction two, and sodium dihydrogen phosphate in reaction three. The mass of the salt, the (experimental) formula weight of the salt, the empirical formula of the salt, and the name of the salt were found in this experiment through each reaction. The errors of this experiment should be taken into account. It is significant when determining why the mass of the salt was not exactly on par with the theoretical formula weight. The errors should be taken into account if the experiment is to be carried out again in order to ensure more precise