   Chapter 16, Problem 9Q

Chapter
Section
Textbook Problem

# Ag2S(s) has a larger molar solubility than CuS even though Ag2S has the smaller Ksp value. Explain how this is possible.

Interpretation Introduction

Interpretation: An explanation regarding the fact that Ag2S has larger molar solubility than CuS even though Ag2S has smaller Ksp value is to be stated.

Concept introduction: Solubility product, Ksp is defined as the product of the concentration of ions in a saturated solution where each ion is raised to the power of their coefficients. If the number of ions is same, then value of Ksp is directly compared to calculate its solubility. Higher the concentration of ions, larger will be the Ksp value.

Explanation

Explanation

To determine: The explanation regarding the fact that Ag2S has larger molar solubility than CuS even though Ag2S has smaller Ksp value.

The relative solubility of two salts is directly compared by the values of their solubility product when these salts contain same number of cations and anions

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