post lab discussion: exp. 9 Flashcards
1
Q
it is a redox titration that involves the use of permanganates to measure the amount of analyte present in an unknown chemical samples
A
permanganometry
2
Q
permanganometry is an example of ____ titration
A
redox titration
3
Q
strong oxidizing agents
A
permanganates
4
Q
self indicating reagent that does not need any colorimetric indicator
A
KMnO4
5
Q
why does the permanganates need light-protected environment
A
to prevent its decomposition
6
Q
why does the sodium oxalate solution must be heated
A
because it reacts with permanganate very slowly at room temperature
7
Q
what is the endpoint
A
appearance of faint pink color
8
Q
true or false:
potassium permanganate solution must be boiled before use
A
true
