Chemistry > QUESTIONS & ANSWERS > Questions and Answers > Science Chemistry Calculate the alkaline strength of asample of impure K2CO3 (All)
Question 9.31. Calculate the alkaline strength of asample 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=0.0... 08473g KHC2O4•H2C2O4•2H2O; 1.000mL HCl=2.500mL NaOH. 9.32. Calculate the percentage putiry of asample 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. [Show More]
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