Textbook Question
a. Why is the SO3 molecule trigonal planar but the SO32– ion is trigonal pyramidal?
Ch.22 - The Main Group Elements
McMurry8th EditionChemistryISBN: 9781292336145
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Table of contents
- Ch.1 - Chemical Tools: Experimentation & Measurement170
- Ch.2 - Atoms, Molecules & Ions160
- Ch.3 - Mass Relationships in Chemical Reactions169
- Ch.4 - Reactions in Aqueous Solution199
- Ch.5 - Periodicity & Electronic Structure of Atoms102
- Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory92
- Ch.7 - Covalent Bonding and Electron-Dot Structures61
- Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure59
- Ch.9 - Thermochemistry: Chemical Energy122
- Ch.10 - Gases: Their Properties & Behavior155
- Ch.11 - Liquids & Phase Changes54
- Ch.12 - Solids and Solid-State Materials73
- Ch.13 - Solutions & Their Properties120
- Ch.14 - Chemical Kinetics98
- Ch.15 - Chemical Equilibrium125
- Ch.16 - Aqueous Equilibria: Acids & Bases110
- Ch.17 - Applications of Aqueous Equilibria147
- Ch.18 - Thermodynamics: Entropy, Free Energy & Equilibrium86
- Ch.19 - Electrochemistry154
- Ch.20 - Nuclear Chemistry96
- Ch.21 - Transition Elements and Coordination Chemistry156
- Ch.22 - The Main Group Elements187
- Ch.23 - Organic and Biological Chemistry51
Chapter 22, Problem 22.133a
Write a balanced net ionic equation for the reaction of the amphoteric oxide Ga2O3 with:
a. Aqueous sulfuric acid
Verified step by step guidance1
Identify the reactants: Gallium(III) oxide (Ga_2O_3) and sulfuric acid (H_2SO_4).
Write the balanced molecular equation for the reaction: Ga_2O_3 + 3H_2SO_4 → 2Ga^3+ + 3SO_4^2- + 3H_2O.
Separate the aqueous compounds into their respective ions: Ga_2O_3 (s) + 6H^+ (aq) + 3SO_4^2- (aq) → 2Ga^3+ (aq) + 3SO_4^2- (aq) + 3H_2O (l).
Cancel out the spectator ions (SO_4^2-) that appear on both sides of the equation.
Write the net ionic equation: Ga_2O_3 (s) + 6H^+ (aq) → 2Ga^3+ (aq) + 3H_2O (l).
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Amphoteric Oxides
Amphoteric oxides are metal oxides that can react with both acids and bases. They exhibit dual behavior, meaning they can either donate or accept protons depending on the nature of the reacting substance. For example, gallium oxide (Ga2O3) can react with acids to form salts and with bases to form complex ions, showcasing its amphoteric nature.
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03:03
Amphoteric Species
Net Ionic Equations
A net ionic equation represents the chemical species that are actually involved in a reaction, omitting the spectator ions that do not participate. To write a net ionic equation, one must first write the balanced molecular equation, then dissociate the soluble ionic compounds into their constituent ions, and finally eliminate the spectator ions to focus on the species that undergo a change.
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00:51Net Ionic Equations
Acid-Base Reactions
Acid-base reactions involve the transfer of protons (H+) between reactants. In this context, sulfuric acid (H2SO4) acts as a strong acid, donating protons to the amphoteric oxide Ga2O3. Understanding the behavior of acids and bases, including their strength and the resulting products, is crucial for predicting the outcome of the reaction and writing the correct net ionic equation.
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Related Practice
Textbook Question
An important physiological reaction of nitric oxide (NO) is its interaction with the superoxide ion (O2–) to form the peroxynitrite ion (ONOO–).
a. Write electron-dot structures for NO, O2–, and ONOO–, and predict the O–N–O bond angle in ONOO–.
Textbook Question
Which compound in each of the following pairs is more covalent?
(a) PCl3 or AlF3
Textbook Question
Which element in each of the following pairs has more nonmetallic character?
(a) Se or Te
Textbook Question
Write a balanced net ionic equation for the reaction of the amphoteric oxide ZnO with:
a. Hydrochloric acid
Textbook Question
In the following pictures of binary hydrides, ivory spheres
represent H atoms or ions, and burgundy spheres represent
atoms or ions of the other element.
(1)
(2)
(3)
(4)
(a) Identify each binary hydride as ionic, covalent, or interstitial.
(b) What is the oxidation state of hydrogen in compounds (1), (2), and (3)? What is the oxidation state of the other
element?