Final answer:
Two pieces of data obtained from a titration are the volume of titrant used and pH changes of the solution, which help calculate the analyte concentration and illustrate the reaction progress.
Step-by-step explanation:
Experimental data that can be obtained by performing a titration include the volume of the titrant used and the pH changes of the solution during the titration process. When a known concentration of titrant is added to an analyte, the point at which the reaction between the two is complete is known as the equivalence point. The volume of titrant added to reach this point can be used to calculate the concentration of the analyte. Indicators or pH meters are often used to detect the equivalence point through a color change or by measuring the pH change, respectively. Titration data is typically presented in tables or plotted as titration curves to illustrate the relationship between the volume of titrant and the pH level of the solution.