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A sample of Rochelle salt (KNaC4H4O6. 4H2O), after ignition to convert it to the double carbonate, is titrated with H2SO4, using methyl orange as an indicator. From the following data calculate the percentage purity of the sample: wt. of sample= 0.9500g; H2SO4 used = 43.65 mL; NaOH used = 1.72 mL; 1.000 mL H2SO4 = 1.064 mL of 0.1321 N NaOH. A. 50.70%     B. 58.90%       C. 87.76%       D. 95.50%

A sample of Rochelle salt (KNaC4H4O6. 4H2O), after ignition to convert it to the double carbonate, is titrated with H2SO4, using methyl orange as an indicator. From the following data calculate the percentage purity of the sample: wt. of sample= 0.9500g; H2SO4 used = 43.65 mL; NaOH used = 1.72 mL; 1.000 mL H2SO4 = 1.064 mL of 0.1321 N NaOH. A. 50.70%     B. 58.90%       C. 87.76%       D. 95.50%

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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A sample of Rochelle salt (KNaC4H4O6. 4H2O), after ignition to convert it to the double carbonate, is titrated with H2SO4, using methyl orange as an indicator. From the following data calculate the percentage purity of the sample: wt. of sample= 0.9500g; H2SO4 used = 43.65 mL; NaOH used = 1.72
mL; 1.000 mL H2SO4 = 1.064 mL of 0.1321 N NaOH.
A. 50.70%     B. 58.90%       C. 87.76%       D. 95.50%

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