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03-10-2008, 01:00 AM
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| i'm stuck on this chemistry problem?
You are given a solid that is a mixture of Na2SO4 and K2SO4. A 0.202 g sample of the mixture is dissolved in water. An excess of an aqueous solution of BaCl2 is added. The BaSO4 that is formed is filtered, dried, and weighed. Its mass is 0.301 g. What mass of SO42- ions is in the sample? What is the mass percent of SO42- ion in the sample? What are the percent compositions by mass of Na2SO4 and K2SO4 in the sample?      |
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