Question

1. (8 pts) Consider if the initial unknown acid solution used in this experiment started out more dilute. Predict any differences you would expect to see in the titration curve ‐ clearly identify what changes, if any, are expected for:

 initial pH
 pH at the half‐equivalence point
 NaOH volume needed to reach the equivalence point
 pH at the equivalence poin

Answer 1

The answers are in the explanation

Step-by-step explanation:

- Initial pH: An acid solution more dilute has a higher pH because concentration of H⁺ decreases.

- pH at the half‐equivalence point: In a titration curve. The pH at the half-equivalence point will be higher because the initial pH is higher and the equivalence point pH is the same.

- NaOH volume needed to reach the equivalence point: As the diulte solution has a higher pH, the NaOH volume you need is lower than original solution.

- pH at the equivalence point: The pH at the equivalence point will be always the same (pH = 7,0). Because is the pH where the total H⁺ of the acid were consumed.

I hope it helps!