*A indirect-titration method where the concentration of an analyte is determined by reacting it with a known amount of excess reagent. The remaining excess reagent is then tritrated with another second reagent. The second titration's results show how much of the excess reagent was used in the first titration and the original analyte's concentration can then be calculated.

 

 

 

 

 

 

 

 

 

 

 

Example: A 0.2160g sample of primary HgO was dissolved in 75ml of an aqueous solution KI. The liberated OH needed 22.13 mL of HCl to reach the end point. Find the M of HCl. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

References: Chemistry Notes

 

 

 

Written by: Rodnny Villareal