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Iron (III) chloride and aluminium sulphate are two chemicals that can be used in the purification of town water supplies - HSC - SSCE Chemistry - Question 5 - 2011 - Paper 1
Question 5
Iron (III) chloride and aluminium sulphate are two chemicals that can be used in the purification of town water supplies. What is the role of these chemicals? (A) T... show full transcript
Worked Solution & Example Answer:Iron (III) chloride and aluminium sulphate are two chemicals that can be used in the purification of town water supplies - HSC - SSCE Chemistry - Question 5 - 2011 - Paper 1
Step 1
To remove particulate material by flocculation
Answer
Iron (III) chloride and aluminium sulphate play a crucial role in water purification by promoting the process of flocculation. This process involves the aggregation of small particles and impurities present in the water, allowing them to clump together and subsequently settle out of the water. By facilitating the removal of particulates, these chemicals enhance the clarity and quality of the water.