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Chemistry: The Molecular Nature of Matter and Change | 5th Edition | ISBN: 9780073048598 | Authors: Martin S. Silberberg
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(a) ABrnsted-Lowry acid-base reaction proceeds in the net direction in which a stronger

Chapter 18, Problem 18.39

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QUESTION:

(a) A Brønsted-Lowry acid-base reaction proceeds in the net direction in which a stronger acid and stronger base form a weaker acid and weaker base. Explain.

(b) The molecular scene at right depicts an aqueous solution of two conjugate acid-base pairs: HA/A? and HB/B?. The base in the first pair is represented by red spheres and the base in the second pair by green spheres; solvent molecules are omitted for clarity. Which is the stronger acid? Stronger base? Explain.

                                            Screenshot_20220404-112938_Samsung Notes.jpg

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QUESTION:

(a) A Brønsted-Lowry acid-base reaction proceeds in the net direction in which a stronger acid and stronger base form a weaker acid and weaker base. Explain.

(b) The molecular scene at right depicts an aqueous solution of two conjugate acid-base pairs: HA/A? and HB/B?. The base in the first pair is represented by red spheres and the base in the second pair by green spheres; solvent molecules are omitted for clarity. Which is the stronger acid? Stronger base? Explain.

                                            Screenshot_20220404-112938_Samsung Notes.jpg

ANSWER:

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According to the Brønsted-Lowry theory, an acid is a substance that contributes its  ion to generate a conjugate base. A base is a substance that acquires an ion to generate a conjugate acid.

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