Question

Assume we have 25 mL of a 2.5 M HCl and a solution of NaOH of unkown concentration. The two react via the following equation.

HCl(aq) + NaOH(aq) -> NaCl(aq) + H2O(l)

Select all that apply:

A. HCl is the titrant.
B. HCl is the analyte
C. NaOH is the titrant
D. NaOH is the analyte

My analysis: I would say that C would be the titrant as it is the unknown and the titrant would be HCl as it is the given? Is that correct?

Answer 1

Answer is A - HCl is the titrant and D-NaOH is the analyte.

In a titration process, the solution of unknown concentration considered is the analyte. During titration, a standard solution(titrant) is added to an analyte until the equivalence point is achieved.

So in this case as the concentration of NaOH is not known,NaOH is the analyte.

Titrant is the solution whose concentration is known to us and is added to an analyte until the equivalence point is reached. In this case since we know the concentration of HCl, HCl is the titrant.