Question

250 mg of caco3 was dissolved in hcl and the solution was made 250ml with distilled water.50ml of the above solution required 20 ml of edta solution.50 ml of hard water sample consumed 25ml of edta with ebt as indicator.calculate the total hardness of water sample in ppm

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

I really don't know chemistry that much ; just in class 8