Quantitative measurement of an analyte in solution

Question

by completely reacting it with a reagent solution of
known concentration called the titrant.
WHAT DOES IT MEAN

Answer 1

This means that the concentration of an analyte in a solution can be determined by adding a known concentration of a reagent solution (called the titrant) until the analyte is completely reacted. The amount of titrant needed to react with the analyte can be used to calculate the concentration of the analyte in the solution. This method is known as titration and is commonly used in analytical chemistry.