Question 9
To purify an impure salt sample (e.g. table salt or Epsom salt), approximately 50 g of the sample is mixed with 100 ml of distilled water and stirred. The solution is heated gently to near boiling, without boiling, then allowed to cool slowly at room temperature. After cooling, the solid crystals are separated using a funnel and filter paper. What role does filtration play in the purification process?
