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Concept explainers
Interpretation:
The Silver sulfide (Ag2S) solubility product Ksp value has to be determined using the Appendix B.
Concept introduction:
Solubility product: The products of power of ion concentrations, which are dissolved in solvent is known as solubility product and it is it is also known as equilibrium between solute (ionic solids) and its saturated solutions.
- The solubility product constant (Ksp) is defined as the equilibrium between compound and its ions in an aqueous solution.
- Solubility product is the multiplication of concentration of dissolved ion, raised to the power of coefficients.
- Ionic compound A3B Ksp = [A]3[B].
- Molar solubility is defined as amount of solute that can be dissolved in one liter of solution before it attains saturation.
Free energy changeΔG: change in the free energy takes place while reactants convert to product where both are in standard state. It depends on the equilibrium constant K
ΔG = ΔGo+ RT ln (K)ΔGo = ΔHo − TΔSo
Where,
T is the temperature
ΔG is the free energy
ΔGo, ΔHo and ΔSo is standard free energy, enthalpy and entropy values.
Free energy (Gibbs free energy) is the term that is used to explain the total energy content in a thermodynamic system that can be converted into work. The free energy is represented by the letter G. All spontaneous process is associated with the decrease of free energy in the system. The standard free energy change (ΔG°rxn) is the difference in free energy of the reactants and products in their standard state.
ΔG°rxn=∑mΔGf°(Products)-∑nΔGf°(Reactants)
Where,
nΔGf°(Reactants) is the standard entropy of the reactants
mΔGf°(products) is the standard free energy of the products
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Chapter 20 Solutions
Chemistry: The Molecular Nature of Matter and Change
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