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Percentage purity

by | Jul 7, 2021 | Homework Help

9.31. Calculate the alkaline strength of a sample of impure K2CO3 in terms of per cent K2O from the following data: Wt. of sample=1.000g; HCl used= 55.90mL; NaOH used=0.42mL; 1.000mL NaOH=0.008473g KHC2O4•H2C2O4•2H2O; 1.000mL HCl=2.500mL NaOH.9.32.

Calculate the percentage purity of as ample of calcite (caCO3) from the following information: Standardization data: Wt. of H2C2O4•2H2O=0.2469g; NaOH used=41.03mL; HCl used=0.63mL;1.000mL NaOH=1.190mLHCl. Analysis data: Wt. of sample=0.1200g; HCl used= 36.38mL; NaOH used=6.20mL.9.31.

Calculate the alkaline strength of a sample of impure K2CO3 in terms of per cent K2O from thefollowing data: Wt. of sample=1.000g; HCl used= 55.90mL; NaOH used=0.42mL; 1.000mLNaOH=0.008473g…

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