Question

1. a student uses 0.1376 g of an unknown acid in the first titration and determines an endpoint of 9.52 ml. what mass should they use for part 2 of this experiment?

Explanation:

Step1: Assume constant conditions

In a titration experiment under the same experimental conditions (same acid - base system, same indicators etc.), the ratio of the mass of the acid to the volume of the titrant used remains constant if the concentrations of the solutions remain the same. But without further information about the nature of Part 2 of the experiment, if we assume Part 2 is to replicate the first - part experiment exactly, the mass of the unknown acid used should be the same.

Answer:

0.1376 g