Titration is a process by which the concentration of an unknown substance in solution is

Question

determined by adding measured amounts of a standard solution that reacts with the
unknown. Then the concentration of the unknown can be calculated using the stoichiometry
of the reaction and the number of moles of standard solution needed to reach the so
called end point.
Precipitation titrations are based upon reactions that yield ionic compounds of limited
solubility. The most important precipitating reagent is silver nitrate. Titrimetric methods
based upon silver nitrate are sometimes termed argentometric methods. Potassium
chromate can serve as an end point indicator for the argentometric determination of
chloride, bromide and cyanide ions by reacting with silver ions to form a brick-red silver
chromate precipitate in the equivalence point region.
briefly pharaphrase it

Answer 1

Titration is a method used to determine the concentration of an unknown substance in a solution by adding measured amounts of a standard solution that reacts with the unknown substance. Precipitation titrations involve reactions that produce insoluble compounds, with silver nitrate being a commonly used reagent. Potassium chromate can be used as an indicator for the endpoint of argentometric titrations, forming a red precipitate with silver ions.