Final answer:
Conducting three trials for each concentration of ascorbic acid ensures accuracy and reliability of the results by identifying outliers and reducing errors.
Step-by-step explanation:
The reason for conducting three trials for each concentration of ascorbic acid is to ensure the accuracy and reliability of the results. By performing multiple trials, any outliers or inconsistencies can be identified and accounted for. This helps to reduce errors and increase the precision of the measurements.
For example, if there is a variation in the concentration of ascorbic acid in different samples or if there are external factors affecting the reaction, conducting three trials can help to identify and address these issues.
Additionally, by averaging the results of the three trials, a more representative value of the concentration of ascorbic acid can be obtained.