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In sulphur estimation, 0.157 g of an org...

In sulphur estimation, 0.157 g of an organic compound gave 0.4813 g of barium sulphate. What is the percentage of sulphur in the compound?

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Molecular mass of `Ba SO _(4) = 137 + 32 + 64 = 233 g `
233 g `Ba SO _(4)` contains 32 g sulphur
`0.4813 g Ba SO _(4) ` contains `( 32 xx 0. 48 13)/(233) g ` sulphur
Percentage of sulphur `= ( 32 xx 0. 48 13 xx 100)/(233 xx 0. 157) = 42. 10 %`
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