## Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning

# Chapter 14 - Acids and Bases - Questions for Review and Thought - Topical Questions - Page 652b: 26

#### Answer

Hydronium ion concentration: $[H_3O^+] = 5.012 \times 10^{- 5}M$

#### Work Step by Step

$[H_3O^+] = 10^{-pH}$ $[H_3O^+] = 10^{- 4.3}$ $[H_3O^+] = 5.012 \times 10^{- 5}M$ - Solutions with pH < 7* are considered acidics. * Which means $[H_3O^+] > 10^{-7}M$.

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