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  3. mass of empty beaker-----------132.862 g mass of b

mass of empty beaker-----------132.862 g mass of beaker with unknown sample--------133.343g ass of crucible------------41.962g mass of crucible with...

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Chemistry

mass of empty beaker-----------132.862 g

mass of beaker with unknown sample--------133.343g

ass of crucible------------41.962g

mass of crucible with BaSO4---------------42.631g

A) calculate the number of moles of BaSO4 that werecollected

B) calulate the number of moles of SO4^2- ion that were in theunknown

C) calulate the mass of the sulfate ion in the unknown

D) calculate the mass percentage of the sulfate ion in theunknown sample.

Answer & Explanation Solved by verified expert
4.0 Ratings (380 Votes)
Given data Mass of empty beaker 132862 g Mass of beaker with unknown 133343g Hence mass of unknown 0481g Mass of crucible 41962g Mass of crucible with BaSO4 42631g Hence mass of BaSO4 0669g The molecular weight of BaSO4 23343g We know that AMol Wt of molecule 1 mole So 23343g BaSO4 1 mole 0669g BaSO4 0699 23343 0002865 2865 x 103 moles The number    See Answer
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