
Concept explainers
Interpretation: The ion formed when an acid is dissolved in water and the relationship of this ion to water itself needs to be determined.
Concept introduction: An

Answer to Problem 6A
Hydronium ion is formed when acid is dissolved in water and it is a conjugate acid for water itself.
Explanation of Solution
According to the Brønsted−Lowry model, the general reaction that occurs when an acid is dissolved in water can best be represented as an acid (HA) donating a proton to a water molecule to form a new acid (the conjugateacid) and a new base (the conjugate base).
This model emphasizes the significant role of the polar water molecule in pulling the proton from the acid.
The (aq) means the substance is hydrated-it has water molecules clustered around it.
Chapter 16 Solutions
World of Chemistry
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