A 2.4173 g specimen of a drain cleaner is dissolved and diluted to 75 mL with DI water. A 6.00 mL aliquot is titration with 0.1547 M HCl. It requires 24.87 mL of the HCl to reach the phenophthalein end point. a. Compute the molarity of the 6.00 mL aliquot of the solution assuming the alkali and the HCl react in a 1:1 mole ratio. b. Compute number of grams of alkali originally in 75mL flask assuming that the alkali in the drain cleaner is NaOH. c. Computer the weight-% alkali (expressed at wt-% NaOH) in the specimen of drain cleaner.
A 2.4173 g specimen of a drain cleaner is dissolved and diluted to 75 mL with DI water. A 6.00 mL aliquot is titration with 0.1547 M HCl. It requires 24.87 mL of the HCl to reach the phenophthalein end point. a. Compute the molarity of the 6.00 mL aliquot of the solution assuming the alkali and the HCl react in a 1:1 mole ratio. b. Compute number of grams of alkali originally in 75mL flask assuming that the alkali in the drain cleaner is NaOH. c. Computer the weight-% alkali (expressed at wt-% NaOH) in the specimen of drain cleaner.
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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A 2.4173 g specimen of a drain cleaner is dissolved and diluted to 75 mL with DI water. A 6.00 mL aliquot is titration with 0.1547 M HCl. It requires 24.87 mL of the HCl to reach the phenophthalein end point.
a. Compute the molarity of the 6.00 mL aliquot of the solution assuming the alkali and the HCl react in a 1:1 mole ratio.
b. Compute number of grams of alkali originally in 75mL flask assuming that the alkali in the drain cleaner is NaOH.
c. Computer the weight-% alkali (expressed at wt-% NaOH) in the specimen of drain cleaner.
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