Get Charged Up
Magnesium ribbon was reacted with Hydrochloric acid in three different experiments to determine the charge on a metal ion. After running multiple tests in the three different procedures, the Crystallization method proved to be the best method for determining the charge of the metal ion by using mole to mole ratio.
The objective of the Get Charged Up lab was to determine the charge on a metal ion reacting with HCl by determine the mole ratio in a reaction by determining the amount of excess reactant, amount of product, and amount of hydrogen gas produced as well as finding the best research method to determine the charge.
To accomplish this, three different methods were used. Titration was used to react NaOH with HCl to determine the amount of H+ left over after the reaction is complete. Crystallization was used to determine the amount of MgCl₂ made after the reaction is done. Both of these methods allowed us to calculate the amount of H+ reacting with the amount of Mg. The gas law method and the Ideal Gas Law was also used to determine the mole ratio of magnesium metal to hydrochloric acid by measuring the amount of hydrogen gas based on the pressure and temperature changes during the reaction. With the results from each procedure, graphs were constructed and the most accurate and precise method was discernible.
It is predicted that the titration method will be the most effect method of deterring a charge on a metal ion because almost all of the experiment done with titration is done by the experimenter and is the fairly easiest method. A titration is a method of analysis that will allow you to determine the precise endpoint of a reaction and therefore the precise quantity of reactant in the titration flask. Because of this precision, the titration method will be best for determining the charge of a metal ion because it is the most effective process.
Three different methods
References: Malina, Eric. 2013. General Chemistry Lab Manual.