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Based from the given problem, What is the molecular weight and meq of potassium biphthalate (C8H5KO4)?

Based from the given problem, What is the molecular weight and meq of potassium biphthalate (C8H5KO4)?

Chemistry
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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Based from the given problem, What is the molecular weight and meq of potassium biphthalate (C8H5KO4)?  

Part 1: Alkalimetry Preparation and Standardization of 1N Sodium Hydroxide A. Preparation Dissolve 14.7 grams of sodium hydroxide pellets in 100 ml of carbon-dioxide free water. Cool the solution to room temperature Add a freshly prepared saturated solution of barium hydroxide until no more precipitate forms. Shake and filter. Transfer it in a 250 ml volumetric flask, then add sufficient quantity of carbon dioxide free water to make 250 ml. B. Standardization Weigh accurately about 5 grams of potassium biphthalate, previously crushed lightly and dried at 120 degrees Celsius for 2 hours and dissolve it in 75 ml of carbon dioxide free water. Add 2 drops of phenolphthalein TS. Transfer 50 ml of the sodium hydroxide solution in a Buret and titrate the potassium biphthalate solution with the sodium hydroxide solution until it produces a permanent pink color. Note: 24 ml NaOH solution was used to change the color from colorless to pink color *Titer Value: Each ml of 1 N NaOH is equivalent to 204 mg of Potassium biphthalate Table: Data Wt of KHP (g) MW of KHP meg of KHP Volume of sodium hydroxide solution used (ml) Normality Trial 1 5.000 g 24.000
Transcribed Image Text:Part 1: Alkalimetry Preparation and Standardization of 1N Sodium Hydroxide A. Preparation Dissolve 14.7 grams of sodium hydroxide pellets in 100 ml of carbon-dioxide free water. Cool the solution to room temperature Add a freshly prepared saturated solution of barium hydroxide until no more precipitate forms. Shake and filter. Transfer it in a 250 ml volumetric flask, then add sufficient quantity of carbon dioxide free water to make 250 ml. B. Standardization Weigh accurately about 5 grams of potassium biphthalate, previously crushed lightly and dried at 120 degrees Celsius for 2 hours and dissolve it in 75 ml of carbon dioxide free water. Add 2 drops of phenolphthalein TS. Transfer 50 ml of the sodium hydroxide solution in a Buret and titrate the potassium biphthalate solution with the sodium hydroxide solution until it produces a permanent pink color. Note: 24 ml NaOH solution was used to change the color from colorless to pink color *Titer Value: Each ml of 1 N NaOH is equivalent to 204 mg of Potassium biphthalate Table: Data Wt of KHP (g) MW of KHP meg of KHP Volume of sodium hydroxide solution used (ml) Normality Trial 1 5.000 g 24.000
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