Determination of sodium carbonate by acidimetric titration involves:Direct titration by acid solution with usage as indicator either methyl orange orphenolphthalein;heating of analyte till 70° C;Direct titration by acid solution with sequential usage of 2 indicators: methylorange and phenolphthalein;Back titration by acid solution with usage as indicator phenolphthalein;

Process of determination of sodium carbonate by acidimetric titration: CO32- + H+ → HCO3- HCO3- + H+…

Answered: Determination of sodium carbonate by…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A solution containing a mixture of metal cations was treated with dilute HClHCl and a precipitate formed. The solution was filtered, and H2SH2S was bubbled through the acidic solution. A precipitate again formed and was filtered off. Then, the pH was raised to about 88 and H2SH2S was again bubbled through the solution. This time, no precipitate formed. Finally, the solution was treated with a sodium carbonate solution, which resulted in the formation of a precipitate. Classify the metal ions based on whether they were definitely present, definitely absent, or whether it was possible they were present in the original mixture.
Calculate the volume in liters of 0.545 M KOH necessary to titrate 0.0113 moles of hydrochloric acid, HCl, to a phenolphthalein end-point. Report the answer with three significant figures.
Name: Date: Section: Report Sheet: pH: Measurement and Application. A: Determination of pH Using Acid-Base Indicators: Indicator Color NaH,PO, HC,H,O, ZNSO, Methyl Violet Thymol Blue Methyl Yellow Congo Red Bromocresol Green pH Range B: Measurement of the pH of Solutions Record the measured pH and the color observed using bromocresol green for each 0.1 M solution NaH,PO, HC,H,O, ZNSO, C: Determination of K, for a Weak Acid Volume Used(Liters) Moles [HC,H,O,] M HC,H;O, () HC,H,O, |NaC,H;O,] M NaC,H,O, (L) NaC,H,O; Buffer pH pK, HC,H,O, K, HC,H,O, 115

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