Question

Which of the following is the last step in performing a titration
1) finding out which pH indicatorworks
2) determining the concentration of an unknown base
3) finding the number of moles of a product produced in a reaction
4) determining the molecular masses of the products in the reaction

Answer 1

The final step in a typical titration, that is here an acid base one would be to finally find the concentration of your unknown substance whether that be the acid or the base. The other steps are used before this to come to the correct calculation and conclusion.

Answer 2

Answer: determining the concentration of an unknown base

Explanation:  The last step in performing a titration will lead to the determination of the concentration of the unknown base or an unknown quantity.

The other steps like finding out  which pH indicator works,  finding the number of moles of a product produced in a reaction and determining the molecular masses of the products in the reaction comes in between the procedure.