Center for Radiochemistry and Nuclear Materials
Department of Chemistry
Here the learning goals and purpose of the exercise should be presented in a reasonable way.
Tracers and solubility (read)
As the majority of the activity is in the precipitate, it is clear that a minute amount of this in the supernatant may cause a gross error in the determination.
From the results obtained the solubility of strontium sulphate may be determined as follows:
Let count of 1 cm3 original solution diluted 1/100th=z cpm
Let count of 1 cm3 of SrSO4 = y cpm
Thus, 100z cpm is equivalent to 0.1 g Sr(NO3)2
y cpm is equivalent to:
Solution of SrSO4=
Questions for the Students
How to do calculations or other important aspects for the theory that is not directly related to exercise.
glass beaker x 2 for H2O
1 mL pipette
Polystyrene base to stand centrifuge tubes in
25 mL volumetric flask
4-5 mL 2 M sulphuric acid
15 mL centrifuge tubes x 2
> 100 mL dH2O
Scintillation vials x 5
50 mL Scintillation fluid
1 mL tips
4 mL 35S strontium nitrate @ 0.28 kBq per mL
The preparation that the lab Supervisor needs to do to ready the lab.
Here there should be a link to a open page where people who have used the exercise can leave feedback. How the exercises worked and troubles in performing it.