Standardization of 1N Potassium Hydroxide Accurately weigh about 5 g of potassium biphthalate, previously crushed lightly and dried at 120° for 2 hours, and dissolve in 75 mL of carbon dioxide-free water. Add 2 drops of phenolphthalein TS, and titrate with the sodium hydroxide solution to the production of a permanent pink color. Titration Data Weight of potassium biphthalate used in the titration: 5.1037 g Volume of potassium hydroxide solution used in the titration: 31.20 mL What is the true concentration, in normality, of the potassium hydroxide solution?

Standardization of 1N Potassium Hydroxide Accurately weigh about 5 g of potassium biphthalate, previously crushed lightly and dried at 120° for 2 hours, and dissolve in 75 mL of carbon dioxide-free water. Add 2 drops of phenolphthalein TS, and titrate with the sodium hydroxide solution to the production of a permanent pink color. Titration Data Weight of potassium biphthalate used in the titration: 5.1037 g Volume of potassium hydroxide solution used in the titration: 31.20 mL What is the true concentration, in normality, of the potassium hydroxide 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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Question

Standardization of 1N Potassium Hydroxide
Accurately weigh about 5 g of potassium biphthalate, previously crushed lightly and dried at 120° for 2
hours, and dissolve in 75 mL of carbon dioxide-free water. Add 2 drops of phenolphthalein TS, and
titrate with the sodium hydroxide solution to the production of a permanent pink color.
Titration Data
Weight of potassium biphthalate used in the titration: 5.1037 g
Volume of potassium hydroxide solution used in the titration: 31.20 mL
What is the true concentration, in normality, of the potassium hydroxide solution?

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