A 516.7-mg sample containing a mixture of K,SO, and (NH,),SO, was dissolved in water and treated with BaC2, precipitating the SO, ion as BaSO.. The resulting precipitate was isolated by filtration, rinsed free of impurities, and dried to a constant weight, yielding 863.5 mg of BaSO̟. What is the %w/w K,SO, in the sample?

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Solve the gravimetric problem.

Give what is asked. Up to 3 decimal digits only.
- 1 attachment
CALCULATION PROBLEMS
Gravimetric Problems
A 516.7-mg sample containing a mixture of K,SO, and (NH,)½SO, was dissolved in water and
treated with Baci,, precipitating the sO, ion as Baso,. The resulting precipitate was isolated by
filtration, rinsed free of impurities, and dried to a constant weight, yielding 863.5 mg of BaSO4.
What is the %w/w K,SO, in the sample?
Transcribed Image Text:Give what is asked. Up to 3 decimal digits only. - 1 attachment CALCULATION PROBLEMS Gravimetric Problems A 516.7-mg sample containing a mixture of K,SO, and (NH,)½SO, was dissolved in water and treated with Baci,, precipitating the sO, ion as Baso,. The resulting precipitate was isolated by filtration, rinsed free of impurities, and dried to a constant weight, yielding 863.5 mg of BaSO4. What is the %w/w K,SO, in the sample?
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