The flocculation value of H C l for arsenic sulphide sol. is 30 m mol L – 1 . If H 2 S O 4 is used for the flocculation of arsenic sulphide, the amount, in grams, of H 2 S O 4 in 250 ml required for the above purpose is (molecular mass of H 2 S O 4 = 98 g / m o l )

Question

The flocculation value of H C l for arsenic sulphide sol. is 30 m mol L – 1 . If H 2 S O 4 is used for the flocculation of arsenic sulphide, the amount, in grams, of H 2 S O 4 in 250 ml required for the above purpose is (molecular mass of H 2 S O 4 = 98 g / m o l ), 0.1838, 0.3864, 0.3675, 0.1218

MARKS App · Accepted Answer

→ 1 litre solution of 30 m mol of H C l is required → For 1 litre solution 15 m mol H 2 S O 4 is required. 250 ml of solution required: 15 4 × 1 0 - 3 (m mol) of H 2 S O 4 = 0 . 3675 gm

Search any question & find its solution

Looking for more such questions to practice?