Domanda del libro di testo
Use the molecular representations shown here to classify each compound as a nonelectrolyte, a weak electrolyte, or a strong electrolyte (see Figure 4.6 for the element color scheme). (a)
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Ch.4 - Reactions in Aqueous Solution
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement146
- Ch.2 - Atoms, Molecules, and Ions200
- Ch.3 - Chemical Reactions and Reaction Stoichiometry176
- Ch.4 - Reactions in Aqueous Solution155
- Ch.5 - Thermochemistry126
- Ch.6 - Electronic Structure of Atoms131
- Ch.7 - Periodic Properties of the Elements126
- Ch.8 - Basic Concepts of Chemical Bonding123
- Ch.9 - Molecular Geometry and Bonding Theories143
- Ch.10 - Gases147
- Ch.11 - Liquids and Intermolecular Forces91
- Ch.12 - Solids and Modern Materials122
- Ch.13 - Properties of Solutions126
- Ch.14 - Chemical Kinetics174
- Ch.15 - Chemical Equilibrium101
- Ch.16 - Acid-Base Equilibria139
- Ch.17 - Additional Aspects of Aqueous Equilibria146
- Ch.18 - Chemistry of the Environment72
- Ch.19 - Chemical Thermodynamics129
- Ch.20 - Electrochemistry142
- Ch.21 - Nuclear Chemistry101
- Ch.22 - Chemistry of the Nonmetals68
- Ch.23 - Transition Metals and Coordination Chemistry66
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry10
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970Non è quello che usi tu?Cambia libro di testo
Capitolo 4, Problema 1
Which of the following schematic drawings best describes a solution of Li2SO4 in water (water molecules not shown for simplicity)?
Guida verificata passo dopo passo1
Understand the composition of Li2SO4: Lithium sulfate (Li2SO4) is an ionic compound composed of two lithium ions (Li^+) and one sulfate ion (SO4^2-).
Consider the dissociation in water: When Li2SO4 dissolves in water, it dissociates into its constituent ions. This means that each formula unit of Li2SO4 will produce two Li^+ ions and one SO4^2- ion.
Visualize the solution: In the solution, you will have a mixture of Li^+ ions and SO4^2- ions dispersed throughout the water. The water molecules, although not shown, are surrounding and stabilizing these ions.
Identify the correct schematic: The correct schematic should show twice as many Li^+ ions as SO4^2- ions, reflecting the stoichiometry of the dissociation process.
Check for charge balance: Ensure that the total positive charge from the Li^+ ions equals the total negative charge from the SO4^2- ions, maintaining electrical neutrality in the solution.
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Ionic Compounds in Solution
Ionic compounds, like Li2SO4, dissociate into their constituent ions when dissolved in water. In this case, lithium ions (Li+) and sulfate ions (SO4^2-) separate and disperse throughout the solution. Understanding this dissociation is crucial for visualizing how ionic compounds interact with solvent molecules.
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02:11
Ionic Compounds Naming
Solvation Process
Solvation refers to the process by which solvent molecules surround and interact with solute ions or molecules. In the case of Li2SO4 in water, water molecules will orient themselves around the Li+ and SO4^2- ions, stabilizing them in solution. This concept is essential for understanding the behavior of ions in an aqueous environment.
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04:20Spontaneity of Processes
Schematic Representations of Solutions
Schematic drawings are simplified representations that illustrate the arrangement of particles in a solution. For Li2SO4 in water, a correct schematic would show the dissociated Li+ and SO4^2- ions distributed throughout the drawing, highlighting their interactions with the solvent. This visual representation aids in comprehending the molecular dynamics within the solution.
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Percorso guidato
01:39Solution Components
Pratica correlata
Domanda del libro di testo
The concept of chemical equilibrium is very important. Which one of the following statements is the most correct way to think about equilibrium? (a) If a system is at equilibrium, nothing is happening. (b) If a system is at equilibrium, the rate of the forward reaction is equal to the rate of the back reaction. (c) If a system is at equilibrium, the product concentration is changing over time.
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Domanda del libro di testo
Aqueous solutions of three different substances, AX, AY, and AZ, are represented by the three accompanying diagrams. Identify each substance as a strong electrolyte, a weak electrolyte, or a nonelectrolyte.
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