A 0.6025 g sample was dissolved and the Ca2+ and Ba2+ ions present were precipitated as BaC2O4.H2O and CaC2O4.H2O. The oxalates were then heated in a thermogravimetric apparatus leaving a residue that weighed 0.5713 g in the range 320oC to 400oC and 0.4674 g in the range 580oC to 620oC. Calculate the percentage Ba in the sample.
A 0.6025 g sample was dissolved and the Ca2+ and Ba2+ ions present were precipitated as BaC2O4.H2O and CaC2O4.H2O. The oxalates were then heated in a thermogravimetric apparatus leaving a residue that weighed 0.5713 g in the range 320oC to 400oC and 0.4674 g in the range 580oC to 620oC. Calculate the percentage Ba in the sample.
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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A 0.6025 g sample was dissolved and the Ca2+ and Ba2+ ions present were precipitated as BaC2O4.H2O and CaC2O4.H2O. The oxalates were then heated in a thermogravimetric apparatus leaving a residue that weighed 0.5713 g in the range 320oC to 400oC and 0.4674 g in the range 580oC to 620oC. Calculate the percentage Ba in the sample.
Transcribed Image Text:Thermal
5.) A 0.6025 g sample was dissolved and the Ca2+ and Ba2+ ions present were
precipitated as BaC;O4.H2O and CaC,04. H2O. The oxalates were then heated in a
thermogravimetric apparatus leaving a residue that weighed 0.5713 g in the range
320°C to 400°C and 0.4674 g in the range 580°C to 620°C. Calculate the percentage
Ba in the sample.
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