Aim
The aim of the experiment is to check whether pH of the chosen fizzy drink is basic, neutral or acidic. To find the answer the titration method will be used. The chosen fizzy drink will be Sprite due to its transparency (it is easy to see when the color changes during the experiment).
Hypothesis
Sprite will probably have acidic pH (smaller than 7) as one of ingredients is citric acid. However as it is drink used by people pH cannot be to small as it would be harmful to the human organism. As I checked pH of Sprite should oscillate somewhere around 2.75.
Theory
"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. A buret is used to deliver the second reactant to the flask and an indicator or pH Meter is used to detect the endpoint of the reaction.
A typical titration begins with a beaker or Erlenmeyer flask containing a precise volume of the reactant and a small amount of indicator, placed underneath a burette containing the reagent. By controlling the amount of reagent added to the reactant, it is possible to detect the point at which the indicator changes colour. As long as the indicator has been chosen correctly, this should also be the point where the reactant and reagent neutralise each other, and, by reading the scale on the burette, the volume of reagent can be measured.
The aim of the experiment is to check whether pH of the chosen fizzy drink is basic, neutral or acidic. To find the answer the titration method will be used. The chosen fizzy drink will be Sprite due to its transparency (it is easy to see when the color changes during the experiment).
Hypothesis
Sprite will probably have acidic pH (smaller than 7) as one of ingredients is citric acid. However as it is drink used by people pH cannot be to small as it would be harmful to the human organism. As I checked pH of Sprite should oscillate somewhere around 2.75.
Theory
"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. A buret is used to deliver the second reactant to the flask and an indicator or pH Meter is used to detect the endpoint of the reaction.
A typical titration begins with a beaker or Erlenmeyer flask containing a precise volume of the reactant and a small amount of indicator, placed underneath a burette containing the reagent. By controlling the amount of reagent added to the reactant, it is possible to detect the point at which the indicator changes colour. As long as the indicator has been chosen correctly, this should also be the point where the reactant and reagent neutralise each other, and, by reading the scale on the burette, the volume of reagent can be measured.