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Ch. 2 - Chemical Principles
Tortora - Microbiology: An Introduction 14th Edition
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Capitolo 2, Problema 7

Classify each of the molecules on the left as an acid, base, or salt. The dissociation products of the molecules are shown to help you.
HNO3 → H+ + NO⁻3
a. Acid
b. Base
c. Salt

Guida verificata passo dopo passo
1
Identify the molecule given: HNO₃ (nitric acid).
Look at the dissociation products: HNO₃ → H⁺ + NO₃⁻.
Recall that an acid is a molecule that donates a proton (H⁺) when it dissociates in water.
Since HNO₃ dissociates to release H⁺ ions, classify it as an acid.
Confirm that the other product, NO₃⁻, is the conjugate base formed after the acid donates the proton.

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Acids, Bases, and Salts Classification

Acids are substances that release hydrogen ions (H⁺) when dissolved in water, bases release hydroxide ions (OH⁻), and salts are formed from the neutralization of acids and bases, typically dissociating into cations and anions other than H⁺ or OH⁻.
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Acids and Bases

Dissociation of Molecules in Water

Dissociation refers to the process where molecules split into ions in solution. Understanding which ions are produced helps classify the molecule as an acid, base, or salt based on the presence of H⁺ or OH⁻ ions.
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01:54
Introduction to Water

Nomenclature and Ion Identification

Recognizing common ions such as H⁺ (hydrogen ion) and NO₃⁻ (nitrate ion) is essential. For example, HNO₃ dissociates into H⁺ and NO₃⁻, indicating it is an acid because it releases H⁺ ions in solution.
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03:48
Bases
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