Question

11. 0.28g of CaCO3 was dissolved in HCl and the solution made upto one litre with
distilled water. 100ml of the above solution(shw) required 28ml of EDTA
solution on titration. 100ml of water sample required 33ml of same EDTA
solution on titration. After boiling 100ml of this water, on cooling, filtering and
then titrating required 10ml of EDTA. Calculate the temporary and permanent
hardness of water.
mainl​

Answer 1

Answer:

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Explanation:

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