30 m L of 0.1 M B a C l 2 is mixed with 40 m L of 0.2 M A l 2 S O 4 3 . What is the weight of B a S O 4 formed ? B a C l 2 + A l 2 S O 4 3 → B a S O 4 + A l C l 3 [Molecular Mass of BaSO 4 = 233]

Question

30 m L of 0.1 M B a C l 2 is mixed with 40 m L of 0.2 M A l 2 S O 4 3 . What is the weight of B a S O 4 formed ? B a C l 2 + A l 2 S O 4 3 → B a S O 4 + A l C l 3 [Molecular Mass of BaSO 4 = 233], 0.999 g, 0.699 g, 0.799 g, 0.99 g

MARKS App · Accepted Answer

First balance it 3 BaCl 2 + Al 2 SO 4 3 → 3 BaSO 4 + 2 AlCl 3 mM before reaction 3 0 × 0 . 1 4 0 × 0 . 2 = 3 = 8 0 0 mM after reaction 0 8 - 1 3 2 ∵ 3 m M o f B a C l 2 reacts with one mole of A l 2 S O 4 3 . ∴ m M o f B a S O 4 f o r m e d = 3 = w t . m o l w t . × 1000 ; ∴ wt. of B a S O 4 formed = 3 × 233 1000 = 0.699 g

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