2. A 0.5520 g of potassium hydrogen phthalate, KHCH&O4, a monoprotic weak acid, takes 24.90 mL of NaOH solution to reach the equivalence point. a. What is the molarity of the NaOH? b. Then, the base was used to analyze an unknown acid. It required 30.20 ml of the base to reach the equivalence point using 1.100 grams of the unknown. Calculate the equivalent weight of the unknown acid. C. If the unknown is prepared as KHP plus impurity, calculate the % of KHP in the unknown.

2. A 0.5520 g of potassium hydrogen phthalate, KHCH&O4, a monoprotic weak acid, takes 24.90 mL of NaOH solution to reach the equivalence point. a. What is the molarity of the NaOH? b. Then, the base was used to analyze an unknown acid. It required 30.20 ml of the base to reach the equivalence point using 1.100 grams of the unknown. Calculate the equivalent weight of the unknown acid. C. If the unknown is prepared as KHP plus impurity, calculate the % of KHP in the unknown.

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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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

2. A 0.5520 g of potassium hydrogen phthalate, KHC&H&O4, a monoprotic weak acid, takes 24.90 ml of
NaOH solution to reach the equivalence point.
a. What is the molarity of the NaOH?
b. Then, the base was used to analyze an unknown acid. It required 30.20 ml of the base to reach
the equivalence point using 1.100 grams of the unknown. Calculate the equivalent weight of
the unknown acid.
c. If the unknown is prepared as KHP plus impurity, calculate the % of KHP in the unknown.

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