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The flocculation value of HCl for arseni...

The flocculation value of HCl for arsenic sulphide sol. is 30 m `molL^-1`. If `H_2SO_4` is used for the flocculation of arsenic sulphide, the amount, in grams, of `H_2SO_4` in 250 ml required for the above purpose is __________ . (molecular mass of `H_2SO_4 = 98g//mol)`

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