E4 abstract - to occur with phenolphthalein due its high...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
For our discussion question, we were to observe and organize the class data from part 3 to infer a pattern in the titration readings for the tested conjugate acids and bases in laboratory. Basing our data upon an average PH for acetic acid, we used a value close to three and observed how different indicators required different amounts of titrant (NaOH) to reach the specified equivalency point and cause a color change of the solution. Our group compared the endpoints of Bromophenol blue, Bromothymol blue, and Phenolphthalein and determined that it took the most amount of NaOH for a color change
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: to occur with phenolphthalein due its high endpoint of 10.0 and our low starting PH. On the contrary, it took the least amount of NaOH to see a color change with Bromophenol blue because its endpoint is a lot lower at 4.6. If we had substituted the conjugate acid H 2 SO 4 for acetic acid in our experiment, we would have had similar results because sulfuric acid is a strong acid and most likely would have had a lower PH that was very close to the one we determined for acetic acid....
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online