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Does pure water contain any H3O+ ions? Explain your answer

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 21Q Chapter 14

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 21Q

Problem 21Q

Does pure water contain any H3O+ ions? Explain your answer.

Step-by-Step Solution:
Step 1 of 3

Answer:

Yes

Explanation:

 pure water contain ions and the process is called  autoionization (or self-ionization) of water.

http://www.middleschoolchemistry.com/lessonplans/chapter6/lesson8

That happens because water can act both as an acid, donating a proton, H+, to another water molecule, which acts as a base.

The reaction results in the formation of the hydronium ion, or H3O+, and of the hydroxide ion, HO.

http://students.washington.edu/nbasil/chem_ch15.html

However, the concentration of hydronium and hydroxide ions will be very, very small; in fact, the equilibrium that's established in solution lies so far to the left, that only 18 in 1010 molecules of water will undergo autoionization.

Step 2 of 3

Chapter 14, Problem 21Q is Solved
Step 3 of 3

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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Does pure water contain any H3O+ ions? Explain your answer