Drye quantity of primary standard potassim hydrogen phthalate (CHP) for about 2 heat 110°C (Fig. 35-9), and cool in a desiccator. Weigh individual 0,7 to 0.8 g somples (to the nearest 0.Img) into 250 mi conical flasks, and dissolve each in 50 to 75 mL of distilled water. Add 2 drops of phenolphthalein; titrate with base until the pink colour of the indicator persists for 30 seconds (Note). Calculate the concentration of the NaOH solution.

Drye quantity of primary standard potassim hydrogen phthalate (CHP) for about 2 heat 110°C (Fig. 35-9), and cool in a desiccator. Weigh individual 0,7 to 0.8 g somples (to the nearest 0.Img) into 250 mi conical flasks, and dissolve each in 50 to 75 mL of distilled water. Add 2 drops of phenolphthalein; titrate with base until the pink colour of the indicator persists for 30 seconds (Note). Calculate the concentration of the NaOH solution.

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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