chemical analysis Flashcards
1
Q
what is chromatography?
A
used to separate the components in a mixture
2
Q
what does separation depend on?
A
size of molecules
polarity of molecules
3
Q
what is volumetric analysis?
A
using a solution of known concentration to determine the concentration of unknown concentration
titration is used
4
Q
what is a standard solution?
A
a solution of known concentration
5
Q
how to make a standard solution?
A
weigh solute dissolve transfer to volumetric flask rinse beaker up to the line
6
Q
why is no indicator needed for permengate/ iron
A
it’s a self indicator
purple in permanganate judge end point when reacted with iron
