Textbook Question
Write a balanced equation for each of the following reactions:
a. Diborane reacts with water to form boric acid and molecular hydrogen.
Ch.22 - Chemistry of the Nonmetals
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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Table of contents
- Ch.1 - Introduction: Matter, Energy, and Measurement177
- Ch.2 - Atoms, Molecules, and Ions231
- Ch.3 - Chemical Reactions and Reaction Stoichiometry216
- Ch.4 - Reactions in Aqueous Solution189
- Ch.5 - Thermochemistry175
- Ch.6 - Electronic Structure of Atoms168
- Ch.7 - Periodic Properties of the Elements150
- Ch.8 - Basic Concepts of Chemical Bonding177
- Ch.9 - Molecular Geometry and Bonding Theories200
- Ch.10 - Gases179
- Ch.11 - Liquids and Intermolecular Forces113
- Ch.12 - Solids and Modern Materials154
- Ch.13 - Properties of Solutions157
- Ch.14 - Chemical Kinetics199
- Ch.15 - Chemical Equilibrium128
- Ch.16 - Acid-Base Equilibria164
- Ch.17 - Additional Aspects of Aqueous Equilibria163
- Ch.18 - Chemistry of the Environment105
- Ch.19 - Chemical Thermodynamics164
- Ch.20 - Electrochemistry171
- Ch.21 - Nuclear Chemistry122
- Ch.22 - Chemistry of the Nonmetals82
- Ch.23 - Transition Metals and Coordination Chemistry79
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Not the one you use?Change textbook
Chapter 22, Problem 75
Complete the exercises below. b. Determine the number of hydroxide ions in the chemical formula of the mineral pyrophyllite, Al₂(Si₂O₅)₂(OH)ₓ.
Verified step by step guidance1
Identify the chemical formula of pyrophyllite: Al₂(Si₂O₅)₂(OH)ₓ.
Recognize that the subscript 'x' in (OH)ₓ represents the number of hydroxide ions in the formula.
Understand that the chemical formula provides the ratio of atoms in the compound, and the subscript 'x' indicates how many hydroxide ions are present.
To determine the value of 'x', you may need additional information such as the charge balance or empirical data about the mineral.
If no additional information is provided, the problem may be asking for a theoretical understanding of how to interpret the formula, focusing on the role of 'x' in representing the number of hydroxide ions.
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Chemical Formula Interpretation
Understanding a chemical formula is crucial for identifying the components of a compound. In the formula Al₂(Si₂O₅)₂(OH)ₓ, each part represents different elements and their quantities. The subscript numbers indicate how many atoms of each element are present, which is essential for determining the overall composition of the mineral.
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Hydroxide Ion (OH⁻)
A hydroxide ion (OH⁻) consists of one oxygen atom and one hydrogen atom, carrying a negative charge. Hydroxide ions are important in various chemical reactions, particularly in acid-base chemistry. In the context of pyrophyllite, the value of 'x' in the formula indicates the number of hydroxide ions present, which contributes to the mineral's properties.
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Stoichiometry
Stoichiometry is the calculation of reactants and products in chemical reactions based on the conservation of mass. It allows chemists to determine the relationships between different substances in a reaction. In this case, stoichiometry helps in calculating the number of hydroxide ions in pyrophyllite by analyzing the overall formula and the contributions of each component.
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