Review of Titration and the Titration Technic - Chemistry Assignment

Chemistry Assignment :

1) Review of titration and the titration technic What is it?/ What is it used for?/What underlying principles?/How is it used in industry? 2) Orange juice. What acid id present in Orange juice? What is the strength of this acid (acid pKa). If it is a weak acid, what is its buffering zone? 3) Talk about the indicator. What is it (it is a chemical with acid/base properties)? How do you choose it? What is its structure? Why does it change colour at different pH (its chemical structure changes when it deprotonates (loses an H) and therefore it absorbs a different wavelength of light)? Which one would you choose for your experiment and why 4) Write the equation of the chemical reaction of neutralization of the acid with the base (when the base is added form the burette and neutralises the acid). Explain in words what happens (the base reacts with the protons (H+) that were released from the acid to produce water. More protons are released from the acid accordingly to Le Chatelier's principle and therefore the pH plateaus for a while (that the buffering zone).