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A sample of well water contains 140 gm/m3 Ca2+ ions and 345 gm/m3 Na+ ions. The hardness of the sample of water, expressed in terms of equivalent CaCO3 in gm/m3 is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16)

🗓 Apr 4, 2024

Answer is "350"

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Abigail 🌐 India
Please please explain this answer to me
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Andrea 🌐 India
I'm in exam, can any one give the solution for this question
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