This experiment is conducted with the purpose of yielding information about the total amount of acidic components (total concentration of H+) found in a Kool-Aid packet. Using the obtained results from Experiment two, %w/w of ascorbic acid and with the obtained knowledge of the total acidity, the experiment can be performed with the purpose of determining the amount of %w/w of citric acid in Kool-Aid. Using a titrimetric analysis method, the analyte, total solution acidity and titrant, sodium hydroxide, undergo an acid-base titration. Differing from the redox titration undergone in experiment two in which the ascorbic acid is reacted with the reduced iodate in the presence of iodine ion generating iodine, which is the form that is used to further …show more content…
Thus it is the detailed information from both experiments that can be used to give a more in-depth understanding of the composition of Kool-Aid. Using the obtained information from experiment two, the %w/w of ascorbic acid can be applied to the total acidity values obtained through stoichiometric analysis, in order to determine the value of citric acid directly found in a Kool-Aid solution. In determining values, a titrimetric analysis is used to yield information about the analyte (total H+ concentration) with the use of a controlled additive titrant (sodium hydroxide) substance of known values. Using this method an equivalence point can be reached where there is an exact volume of titrant added reacting with all of the analyte volume. Such endpoint is reached when an indicator (Thymol blue) visually changes colour during the reaction with excess titrant. This visual occurs when all of the analyte has reacted, and Thymol blue indicator changes colour to represent the volume required for the specific equivalence