Domanda del libro di testo
By referring to Figure 13.15, determine whether the addition of 40.0 g of each of the following ionic solids to 100 g of water at 40 °C will lead to a saturated solution: (d) Pb(NO3)2.
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Ch.13 - Properties of Solutions
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 13, Problema 26b
By referring to Figure 13.15, determine the mass of each of the following salts required to form a saturated solution in 250 g of water at 30 °C: (b) Pb(NO3)2,
Guida verificata passo dopo passo1
Identify the solubility of Pb(NO_3)_2 at 30 °C from Figure 13.15. This value is typically given in grams of solute per 100 grams of water.
Since the solubility is given per 100 grams of water, calculate the amount of Pb(NO_3)_2 needed for 250 grams of water. Use the ratio: (solubility in g/100 g water) = (x g/250 g water).
Solve the proportion to find the mass of Pb(NO_3)_2 required for 250 grams of water.
Ensure the units are consistent throughout the calculation to avoid any errors.
Double-check the solubility value from the figure to ensure accuracy in your calculations.
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Saturation and Solubility
Saturation refers to the point at which a solution can no longer dissolve additional solute at a given temperature and pressure. Solubility is the maximum amount of solute that can dissolve in a specific amount of solvent at a particular temperature. Understanding these concepts is crucial for determining how much of a salt, like Pb(NO3)2, can be dissolved in water.
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Percorso guidato
00:28
Solubility Rules
Molar Mass Calculation
Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). To find the mass of Pb(NO3)2 needed for a saturated solution, one must first calculate its molar mass by summing the atomic masses of its constituent elements. This calculation is essential for converting between moles and grams in stoichiometric problems.
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03:12Molar Mass Calculation Example
Temperature Dependence of Solubility
The solubility of most salts varies with temperature; generally, solubility increases with rising temperature. For the question at hand, knowing that the solubility of Pb(NO3)2 at 30 °C is necessary to determine how much of the salt can be dissolved in 250 g of water. This relationship is key to solving the problem accurately.
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Percorso guidato
01:24Kw Temperature Dependence
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