A sample contains unknown amount of Na2CO3 and NaHCO3 . The sample was titrated with 0.103 N HCl solution and 8 mL is used for phenolphthalein and 26 mL is used for bromocresol end points. Calculate the amounts of Na2CO3 and NaHCO3 in the sample. (Fw Na2CO3 = 106 g/mol; Fw NaHCO3 = 84 g/mol)

A sample contains unknown amount of Na2CO3 and NaHCO3 . The sample was titrated with 0.103 N HCl solution and 8 mL is used for phenolphthalein and 26 mL is used for bromocresol end points. Calculate the amounts of Na2CO3 and NaHCO3 in the sample. (Fw Na2CO3 = 106 g/mol; Fw NaHCO3 = 84 g/mol)

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter14: Principles Of Neutralization Titrations

Section: Chapter Questions

Problem 14.38QAP

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

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A sample contains unknown amount of Na₂CO₃ and NaHCO₃ . The sample was titrated with 0.103 N HCl solution and 8 mL is used for phenolphthalein and 26 mL is used for bromocresol end points. Calculate the amounts of Na₂CO₃ and NaHCO₃ in the sample. (Fw Na₂CO₃ = 106 g/mol; Fw NaHCO₃ = 84 g/mol)

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