Which is the strongest acid?  Acid Ka HF 7.1 x 10-4 HCOOH 1.7 x 10-4 HCN 4.9 x 10-10 HNO2 4.0 x 10-4 CH3COOH 1.8 x 10-5

Introductory Chemistry: A Foundation
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Chapter16: Acids And Bases
Section: Chapter Questions
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Which is the strongest acid?

 Acid

Ka

HF

7.1 x 10-4

HCOOH

1.7 x 10-4

HCN

4.9 x 10-10

HNO2

4.0 x 10-4

CH3COOH

1.8 x 10-5

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