Hello I am stuck in my laboratory, I already did the whole procedure, I am in the last step (# 9) but I can't understand that I have what data I have to put in the test data (Theoretical solubility of NaCl, Temperature, Source) could you explain that data I must put, here is all my lab Thank you very much.   Test Data:  Mass of empty 250-mL beaker: 100.7 g Mass of 250-mL beaker and saturated NaCl solution :106.4 g Temperature of saturated NaCl solution: 24.1°C Mass of 250-mL beaker and NaCl residue (1st weighing): 102.7 g Mass of 250-mL beaker and NaCl residue (2nd weighing): 102.2 g Mass of 250 mL beaker and NaCl residue (3rd weighing): 101.9 g             (Use the lowest mass for calculations) This part  7.Theoretical solubility of NaCl ????? (a)Temperature ?????? (b)Source ????

Hello I am stuck in my laboratory, I already did the whole procedure, I am in the last step (# 9) but I can't understand that I have what data I have to put in the test data (Theoretical solubility of NaCl, Temperature, Source) could you explain that data I must put, here is all my lab Thank you very much.

Test Data: 

1. Mass of empty 250-mL beaker: 100.7 g
2. Mass of 250-mL beaker and saturated NaCl solution :106.4 g
3. Temperature of saturated NaCl solution: 24.1°C
4. Mass of 250-mL beaker and NaCl residue (1^st weighing): 102.7 g
5. Mass of 250-mL beaker and NaCl residue (2^nd weighing): 102.2 g
6. Mass of 250 mL beaker and NaCl residue (3^rd weighing): 101.9 g

            (Use the lowest mass for calculations)

This part 

7.Theoretical solubility of NaCl ?????

(a)Temperature ??????

(b)Source ????