titrations: taking advantage of stoichiometric reactions Flashcards
analytical strategy flowchart for titrimetric analysis
obtain > prepare > carry out analysis method > work the data > calculate & repeat
[OPCWCR]
a group of analytical methods based on determining the quantity of a reagent of known concentration that is required to react completely with the analyte
titrimetry
a type of titrimetry in which the standard reagent is measured volumetrically
Volumetric titrimetry
a type of titrimetry in which the quantity of charge in coulombs required to complete a reaction with the analyte is measured
coulometric titrimetry
it is a reagent of known concentration that is used in a titrimetric analysis
standard solution
a process in which a standard reagent is added to a solution of an analyte until the reaction between the analyte and reagent is judged to be complete
Titration
a process in which the excess of a standard solution used to consume an analyte is determined by titration with a second standard solution
Back-titration
the ____ point of a titration cannot be determined experimentally
equivalence
the point in a titration when the amount of added standard reagent is equivalent to the amount of analyte.
equivalence point
the difference in volume or mass between the equivalence point and the end point
titration error
it is often added to the analyte solution to give an observable physical change (the end point) at or near the equivalence point.
indicator
is the point in a titration when a physical change occurs that is associated with the condition of chemical equivalence
end point
when titrating,
right hand -
left hand -
right hand - swirl the flask
left hand - control the stopcock
how many seconds must u wait for drainage before recording the final vol.
30 sec
what are not used as storage containers
volumetric flask
