Answer
$HA$ is the stronger acid.
Work Step by Step
- The stronger the acid, the lower its $pK_a$:
Since $5.9(HA) < 8.1(HB)$:
$HA$ is stronger than $HB$;
Chemistry (4th Edition)
by Burdge, Julia
Published by
McGraw-Hill Publishing Company
ISBN 10:
0078021529
ISBN 13:
978-0-07802-152-7
Chapter 17 - Questions and Problems - Page 824: 17.4
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