Sodium benzoate, NaC6H5COO (molar mass 144.1 g mol-1) is a common food preservative. The Ka of benzoic acid, C6H5COOH, is 1.6 X 10-5. A chemist titrates 25.00 mL of a stock solution of sodium benzoate, NaC6H5COO, with 1.20 M HCl solution using a pH meter and an indicator. (b) A total of 16.67 mL of 1.20 M HCl is required to reach the equivalence point. Calculate [NaC6H5COO] in the stock solution.
Sodium benzoate, NaC6H5COO (molar mass 144.1 g mol-1) is a common food preservative. The Ka of benzoic acid, C6H5COOH, is 1.6 X 10-5. A chemist titrates 25.00 mL of a stock solution of sodium benzoate, NaC6H5COO, with 1.20 M HCl solution using a pH meter and an indicator. (b) A total of 16.67 mL of 1.20 M HCl is required to reach the equivalence point. Calculate [NaC6H5COO] in the stock solution.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Sodium benzoate, NaC6H5COO (molar mass 144.1 g mol-1) is a common food preservative. The Ka of benzoic acid, C6H5COOH, is 1.6 X 10-5.
A chemist titrates 25.00 mL of a stock solution of sodium benzoate, NaC6H5COO, with 1.20 M HCl solution using a pH meter and an indicator.
-
(b) A total of 16.67 mL of 1.20 M HCl is required to reach the equivalence point. Calculate [NaC6H5COO]
in the stock solution.
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