0.5 gm. of coal sample was burnt in Bomb calorimeter produced 0.06 gm. of BaSO4. calculate percentage of sulphur
Q.1 (g) 0.5 gm. of coal sample was burnt in Bomb calorimeter produced 0.06 gm. of BaSO4. calculate percentage of sulphur
Q.1 (g) 0.5 gm. of coal sample was burnt in Bomb calorimeter produced 0.06 gm. of BaSO4. calculate percentage of sulphur
Best answer
Given: mass of coal W = 0.5 g; mass of BaSO4 = 0.06 g.
Principle: S → SO42− → BaSO4. Since BaSO4 = 233 and S = 32, 233 g of BaSO4 contains 32 g of S.
\( \%S = \dfrac{\text{wt. of BaSO}_4 \times 32 \times 100}{233 \times \text{wt. of coal}} = \dfrac{0.06 \times 32 \times 100}{233 \times 0.5} = \dfrac{192}{116.5} \)
% Sulphur = 1.65 % (1.648%)
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