Review of Research Project

Overall the experiment was unsuccessful. The concept to this lab was rather interesting trying to discover which orange juice between a frozen concentrate or Tropicana contained the most Vitamin C by the use of titration. There were several errors during the lab that somewhat slowed it down. This included the confusion of the starch indictator and the iodine diluted solution. Rather than adding the starch indicator to the Vitamin C solution, the iodine diluted solution was added instead. This error meant a color change did not occur. After this trial a new trial was completed. During this trial the starch indicator was added to the Vitamin C solution and during the titration process a final volume could not be recorded because the color change was not as apparent as it was projected to have been. A third trial was then completed and this time rather than using the diluted iodine solution to titrate the Vitamin C solution a straight iodine solution was tested out. After the starch indicator was added to the Vitamin C solution the straight iodine solution was added drop by drop into the Vitamin C solution. Still there was not a strong color change. Due to the lack of color change within these three trials the lab was marked as being a failure and ended. Some changes could have been made to this lab to make it work better. For instance instead of a starch indicator there could've been a stronger indicator added to titrate the Vitamin C solution. Also, a stronger iodine solution could've been used.