Question

Why copper (ii) sulfate and potassium oxalate solution, must be heated at 90c and not at 100c.

Answer 1

because it will burn completely at hundred degree Celsius and nothing will be left

Answer 2

They won't produce products when heated at 100°C.

• Copper(ii)Sulfate or Potassium Oxalate solution when heat at 90°C, tends to form a white anhydrous crystalline powder.Which is colorless.
• At 90°C, we get extraction of the solution which can be used in further experiments.
• When the same solution is heated at 100°C, they tend to burn and evaporate in the form of gas leaving no product behind.