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Chemistry 14 Online
OpenStudy (anonymous):

A mixture of calcium sulfate (CaSO4) and calcium uranate (CaUO4) contains 10% sulfur by mass. What is the mass percentage of uranium in the mixture?

OpenStudy (anonymous):

id choose a basis of 100 kg mixture, let x = mass of CaSO4 then say (32/136)x=10 which yields x to be 42.5 kg meaning Calcium unrinate = 57.5 kg, then find uranium mass by molar mass fraction [(235/339)*57.5= 39.85] then mass = % = 40%

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