bABack TItrations Flashcards
What is the goal of back titration?
to find the concentration oo a reactant of unknown concentration
How many steps are involved in a back titration?
2
What is the first step of a back titration?
a known volume + unknown concentration of reactant 1 is reacted with an EXCESSIVE known volume + known concentration of reactant 2
What is left/produced after step 1?
a solution made of an excess of Reac. 2 reacting with Reac. 1
What happens in step 2 of a back titration?
the solution is titrated with Reactant 3, another known volume + known concentration reactant
What’s the point of step 2 of the back titration process?
allows you to figure out how much excess Reactant 2 was left over from the initial reaction between Reac. 1 and Reac. 2
How would you figure out how much of the excess + known Reactant 2 reacted with the unknown Reactant 1?
By figuring how much Reactant 2 is left at the end compared to the start
What’s another name for a back titration?
an indirect titration
Why are back titrations sometimes called indirect titrations?
you indirectly fid the concentration of reactant 1 by titrating reactant 2 with reactant 3
