Skip to main content
Pearson+ LogoPearson+ Logo
Ch.17 - Aqueous Ionic Equilibrium
Tro - Chemistry: A Molecular Approach 4th Edition
Tro4th EditionChemistry: A Molecular ApproachISBN: 9780134112831Not the one you use?Change textbook
All textbooksTro 4th EditionCh.17 - Aqueous Ionic EquilibriumProblem 85a
Chapter 17, Problem 85a

Write balanced equations and expressions for Ksp for the dissolution of each ionic compound. a. BaSO4

Verified step by step guidance
1
Write the dissolution equation for barium sulfate (BaSO4). In this equation, solid barium sulfate dissociates into its ions in aqueous solution.
Identify the ions formed from the dissolution of BaSO4. Barium sulfate dissociates into barium ions (Ba2+) and sulfate ions (SO42-).
Write the balanced chemical equation for the dissolution. Since barium sulfate is a 1:1 compound of barium ions and sulfate ions, the equation will reflect this stoichiometry: BaSO4(s) \( \rightarrow \) Ba2+(aq) + SO42-(aq).
Write the expression for the solubility product constant (Ksp). Ksp expressions are written by multiplying the concentrations of the ions, each raised to the power of their stoichiometric coefficients in the balanced equation.
The final expression for Ksp of BaSO4 is: Ksp = [Ba2+][SO42-]. This expression indicates the product of the molar concentrations of barium and sulfate ions in a saturated solution of barium sulfate.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above.
Video duration:
1m
Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Solubility Product Constant (Ksp)

The solubility product constant (Ksp) is an equilibrium constant that applies to the solubility of ionic compounds. It quantifies the extent to which a compound can dissolve in water, represented by the product of the molar concentrations of its ions, each raised to the power of their coefficients in the balanced dissolution equation. A higher Ksp value indicates greater solubility.
Recommended video:
Guided course
01:47
Solubility Product Constant

Dissolution of Ionic Compounds

The dissolution of ionic compounds involves the separation of the compound into its constituent ions when it is added to water. For example, when barium sulfate (BaSO4) dissolves, it dissociates into barium ions (Ba²⁺) and sulfate ions (SO₄²⁻). This process is reversible and establishes an equilibrium between the solid and the dissolved ions.
Recommended video:
Guided course
02:11
Ionic Compounds Naming

Balanced Chemical Equations

A balanced chemical equation represents a chemical reaction with equal numbers of each type of atom on both sides of the equation. For the dissolution of BaSO4, the balanced equation is BaSO4 (s) ⇌ Ba²⁺ (aq) + SO₄²⁻ (aq). Balancing ensures the law of conservation of mass is upheld, which is essential for accurately describing chemical processes.
Recommended video:
Guided course
01:32
Balancing Chemical Equations
Related Practice
Textbook Question
Referring to Table 17.1, pick an indicator for use in the titrationof each acid with a strong base.a. HF

818
views
Textbook Question

Referring to Table 17.1, pick an indicator for use in the titration of each base with a strong acid. a. CH3NH2

954
views
Textbook Question

Write balanced equations and expressions for Ksp for the dissolution of each ionic compound. b. PbBr2

339
views
Textbook Question

Write balanced equations and expressions for Ksp for the dissolution of each ionic compound. c. Ag2CrO4

712
views
1
rank
Textbook Question

Write balanced equations and expressions for Ksp for the dissolution of each ionic compound. a. CaCO3 b. PbCl2 c. AgI