9. Acetic acid, CH3COOH, has the chemical name ethanoic acid and is the compound that gives vinegar it's taste. A chemist carries out an experiment to determine the pka value of CH3COOH. The concentration of CH3COOH in the vinegar sample is 0.870 mol dm-³ and the pH of the vinegar is 2.41. a. Write the expression for the acid dissociated constant, Ka of CH3COOH. b. Calculate the pka value of CH3COOH and give your answer to two decimal places.

9. Acetic acid, CH3COOH, has the chemical name ethanoic acid and is the compound that gives vinegar it's taste. A chemist carries out an experiment to determine the pka value of CH3COOH. The concentration of CH3COOH in the vinegar sample is 0.870 mol dm-³ and the pH of the vinegar is 2.41. a. Write the expression for the acid dissociated constant, Ka of CH3COOH. b. Calculate the pka value of CH3COOH and give your answer to two decimal places.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter16: Solubility And Precipitation Equilibria

Section: Chapter Questions

Problem 70AP

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