Domanda del libro di testo
Indicate the principal type of solute–solvent interaction in each of the following solutions and rank the solutions from weakest to strongest solute–solvent interaction: (b) CH2Cl2 in benzene (C6H6)
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Ch.13 - Properties of Solutions
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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TOC.tableOfContents
- 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: 9780134414232Non è quello che usi tu?Cambia libro di testo
Capitolo 13, Problema 15d
Indicate the type of solute–solvent interaction (Section 11.2) that should be most important in each of the following solutions: (d) HCl in acetonitrile (CH3CN)
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Identify the polarity of the solute (HCl) and the solvent (acetonitrile, CH3CN). HCl is a polar molecule due to the significant electronegativity difference between hydrogen and chlorine. Acetonitrile is also polar, with a triple bond between carbon and nitrogen creating a dipole moment.
Understand the types of solute-solvent interactions possible. These include ion-dipole, dipole-dipole, hydrogen bonding, and dispersion forces.
Determine the most likely interaction between HCl and acetonitrile. Since both are polar, dipole-dipole interactions are possible. Additionally, the positive end of the HCl dipole (hydrogen) can interact with the negative end of the acetonitrile dipole (nitrogen), suggesting possible ion-dipole interactions.
Consider the strength of these interactions. Ion-dipole interactions are generally stronger than dipole-dipole interactions because they involve a full charge interacting with a dipole.
Conclude that the most important type of solute-solvent interaction in a solution of HCl in acetonitrile is likely the ion-dipole interaction, where the hydrogen ion of HCl interacts with the negatively charged nitrogen in acetonitrile.
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Solute-Solvent Interactions
Solute-solvent interactions refer to the various forces that occur between solute particles and solvent molecules when a solution is formed. These interactions can include hydrogen bonding, dipole-dipole interactions, and ion-dipole interactions, which significantly influence the solubility and behavior of solutes in solvents.
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Percorso guidato
01:39
Solution Components
Acetonitrile as a Solvent
Acetonitrile (CH₃CN) is a polar aprotic solvent, meaning it has a significant dipole moment but lacks hydrogen atoms that can participate in hydrogen bonding. This property allows it to solvate cations effectively through dipole-dipole interactions, making it suitable for dissolving ionic and polar solutes like HCl.
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02:40Raoult's Law and Vapor Pressure
Ion-Dipole Interactions
Ion-dipole interactions occur when an ion interacts with the polar ends of a solvent molecule. In the case of HCl in acetonitrile, the H⁺ ion from HCl will interact strongly with the dipole of the acetonitrile molecules, which stabilizes the ion in solution and is a key factor in determining the solubility of ionic compounds in polar solvents.
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Percorso guidato
01:25Dipole Moment
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