water, phenolphthalein is added and a titration performed with 0.36 N HCI, of which a olume of 12 ml is required. Methyl Orange indicator is now added and a further tration performed to the Methyl Orange end point, now requiring 19.5 ml of the acid. alculate the % Na,CO, and % NaHCO, in the sample.

water, phenolphthalein is added and a titration performed with 0.36 N HCI, of which a olume of 12 ml is required. Methyl Orange indicator is now added and a further tration performed to the Methyl Orange end point, now requiring 19.5 ml of the acid. alculate the % Na,CO, and % NaHCO, in the sample.

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

Chapter15: Acid-base Equilibria

Section: Chapter Questions

Problem 132IP: A 10.00-g sample of the ionic compound NaA, where A is the anion of a weak acid, was dissolved in...

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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.

Question

A 2.300 g sample of a material containing Na,CO, and NaHCO, is dissolved in
water, phenolphthalein is added and a titration performed with 0.36 N HCI, of which a
volume of 12 ml is required. Methyl Orange indicator is now added and a further
titration performed to the Methyl Orange end point, now requiring 19.5 ml of the acid.
Calculate the % Na;CO, and % NaHCO, in the sample.

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