00:01
We know that gravimetry is the measurement of a mass of a pure compound to which the analyte is chemically related.
00:11
And here, precipitation method is one of the important gravimetric method.
00:22
And the precipitation method where the analyte is converted into an insoluble product which is filtered, washed and heat.
00:47
Then finally the mass of the resulting residue is determined.
01:00
So this is the precipitation method.
01:06
And this precipitation method consists of direct method and an indirect precipitation method.
01:16
So in direct precipitation method we can discuss an example that let's pb 2 plus is our analyte.
01:27
So pb2 plus which is reacting with water, it's a very, produce pbo2.
01:37
So here pbo2 is the precipitate.
01:42
So here this method is called direct precipitation method because this pbo2 or the precipitate which contains our analyte.
01:52
So here our analyte is pb 2 plus...