Domanda del libro di testo
(a) Calculate the mass percentage of Na2SO4 in a solution containing 10.6 g of Na2SO4 in 483 g of water.
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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 36
Indicate whether each statement is true or false: (c) The solubility of most gases in water decreases as the temperature increases because water is breaking its hydrogen bonding to the gas molecules as the temperature is raised.
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Understand the relationship between gas solubility and temperature: Generally, the solubility of gases in liquids decreases with an increase in temperature.
Consider the kinetic energy of gas molecules: As temperature increases, the kinetic energy of gas molecules also increases, making them more likely to escape from the liquid into the gas phase.
Examine the role of hydrogen bonding: While water does form hydrogen bonds, the decrease in gas solubility with increasing temperature is primarily due to increased kinetic energy, not the breaking of hydrogen bonds.
Evaluate the statement: The statement suggests that the decrease in solubility is due to water breaking its hydrogen bonds with gas molecules, which is not the primary reason for decreased solubility.
Conclude the evaluation: Based on the understanding of gas solubility and temperature, the statement is false because the decrease in solubility is mainly due to increased kinetic energy, not the breaking of hydrogen bonds.
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Gas Solubility in Liquids
The solubility of gases in liquids is influenced by temperature and pressure. Generally, as temperature increases, the kinetic energy of gas molecules also increases, leading to a decrease in solubility. This is because gas molecules are more likely to escape from the liquid phase into the gas phase at higher temperatures.
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Percorso guidato
01:44
Gas Solubility Example
Hydrogen Bonding
Hydrogen bonding is a type of intermolecular force that occurs when hydrogen is covalently bonded to highly electronegative atoms like oxygen or nitrogen. In the context of water, these bonds create a structured network that can affect how gases interact with water. However, the statement incorrectly attributes the decrease in gas solubility to the breaking of hydrogen bonds with gas molecules.
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Percorso guidato
01:22Hydrogenation Reactions
Henry's Law
Henry's Law states that the amount of gas that dissolves in a liquid at a given temperature is directly proportional to the partial pressure of that gas above the liquid. This principle helps explain why gas solubility decreases with increasing temperature, as higher temperatures reduce the gas's tendency to remain dissolved, regardless of the interactions with water molecules.
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Percorso guidato
01:40Henry's Law Calculations
Pratica correlata
Domanda del libro di testo
Indicate whether each statement is true or false: (c) As you cool a saturated solution from high temperature to low temperature, solids start to crystallize out of solution if you achieve a supersaturated solution.
Domanda del libro di testo
Indicate whether each statement is true or false: (d) If you take a saturated solution and raise its temperature, you can (usually) add more solute and make the solution even more concentrated.
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Domanda del libro di testo
Which of the following in each pair is likely to be more soluble in water: (c) HCl or ethyl chloride (CH3CH2Cl)? Explain in each case.
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