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Would you be able to check if water is hard by using detergent?

Would you be able to check if water is hard by using detergent?

Grade:12

2 Answers

Harshit Singh
askIITians Faculty 5872 Points
2 months ago
Dear Student

No, because detergent forms lather in both, hard and soft water.

Thanks
KAPADIA DEV
100 Points
2 months ago
Dear student …
We will not be able to check hardness of water by simple use of Detergent. Because detergents are ammonium or sulphonate salt of long chain carboxylic acids..That is why it can be used in soft and hard water both..But we can not able to predict whether water is hard or soft..it is for use purpose only..
Detergents give good amount of leathers irrespective of water is hard or soft..That is why it can’t be used to predict water hardness.
.The ionic ends of detergent compounds do not form insoluble precipitates with the calcium and magnesium ions present in hard water.Hardnes of water could only be checked with soaps which forms scum on reaction with hard water.
Thank you....

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