Give two methods for removing all of the hardness in a water sample. - Leaving Cert Chemistry - Question g - 2011
Question g
Give two methods for removing all of the hardness in a water sample.
Worked Solution & Example Answer:Give two methods for removing all of the hardness in a water sample. - Leaving Cert Chemistry - Question g - 2011
Step 1
Distillation
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Answer
Distillation involves heating the water to its boiling point, converting it to steam, and then cooling the steam back into liquid. This process effectively removes hard minerals, as they do not evaporate with the water.
Step 2
Ion Exchange Resin (Deioniser)
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Answer
Using an ion exchange resin involves passing water through a resin that replaces hard ions (like calcium and magnesium) with softer ions (like sodium). This process ensures that all hardness is removed from the water.
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