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Why hardness of water is calculated as per CaCO3? Next question is - what is iodometry and iodimetry?plz clarify second question .i need it the most.

Why hardness of water is calculated as per CaCO3? Next question is - what is iodometry and iodimetry?plz clarify second question .i need it the most.

Grade:11

1 Answers

Vikas TU
14149 Points
7 years ago
 the hardness of water is expressed in terms of ppm ( equalent of CaCO3) because the molicular weight of calcium carbonate is 100. it is easy to calculate. this is one of the main reason for expressing the hardness of water in ppm.also calcium carbonate is insoluble in water there four it is easy to calculate its amount in water.

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