Grade 11 Chemistry Solubility Problems/Solutions

Solubility Problems

4. What two substances have the same solubility at 60°C?


Sodium chloride (NaCl) and Potassium dichromate (K₂Cr₂O₇) have a
solubility of about 37.5g / 100g H₂O at 60°C .


5. Which substance's solubility changes the most from 0°C to 100°C?


Potassium nitrate (KNO₃) changes the most from 0°C to 100°C.


6. Which substance's solubility changes the least from 50°C to 100°C?


Cerium (III) sulfate [Ce₂(SO₄)₃] changes the least from 50°C to 100°C.


7. What is the solubility of potassium dichromate at 90°C?



The solubility of potassium dichromate (K₂Cr₂O₇) at 90°C is 70g /
100g H₂O.


8. At what temperature does potassium nitrate have a solubility of 46 g/100 g of water?


At around 35°C, potassium nitrate (KNO₃) has a solubility of
46g/100g.