1.

5 moles of Ba(OH)_(2) are treated with excess of CO_(2). How much Ba(OH_(2) will be formed?

Answer»

39.4 g
197 g
591 g
985g

Solution :d) `BA(OH)_(2) + CO_(2) to BaCO_(3) + H_(2)O`
`therefore` 5 moles of `Ba(OH)_(3)` = 5 moles of `BaCO_(3)`
`therefore` MASS of `BaCO_(3)` = Moles of BaCO_(3) XX Molecular mass of `BaCO_(3)` = `5 xx 197) = 985 g


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