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Ch.4 - Reactions in Aqueous Solution
Brown - Chemistry: The Central Science 14th Edition
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Tutti i libri di testoBrown 14th EditionCh.4 - Reactions in Aqueous SolutionProblema 17a
Capitolo 4, Problema 17a

Ignoring protolysis reactions (i.e. proton transfer reaction), specify what ions are present in a solution upon dissolving each of the following substances in water: (a)Li2CO3

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Step 1: Identify the type of compound. Li2CO3 is an ionic compound, which means it will dissociate into its constituent ions when dissolved in water.
Step 2: Identify the ions that make up the compound. Li2CO3 is made up of Li+ (lithium ions) and CO32- (carbonate ions).
Step 3: Determine the number of each ion. The subscript '2' in Li2CO3 indicates that there are two Li+ ions for every one CO32- ion.
Step 4: Write the dissociation equation. When Li2CO3 is dissolved in water, it dissociates into 2 Li+ ions and 1 CO32- ion.
Step 5: Therefore, upon dissolving Li2CO3 in water, the ions present in the solution are Li+ and CO32-.

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Dissociation of Ionic Compounds

When ionic compounds like Li2CO3 dissolve in water, they dissociate into their constituent ions. This process involves the separation of the positive and negative ions due to the interaction with water molecules, which stabilize the ions in solution.
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02:11
Ionic Compounds Naming

Ionic Species in Solution

In the case of Li2CO3, the dissociation results in lithium ions (Li+) and carbonate ions (CO3^2-). Understanding the specific ions formed is crucial for predicting the behavior of the solution, including its conductivity and reactivity.
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Amphoteric Species

Role of Water as a Solvent

Water is a polar solvent, meaning it has a partial positive charge on one side and a partial negative charge on the other. This polarity allows water to effectively solvate ions, facilitating their separation and stabilization in solution, which is essential for the dissolution process.
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Reaction with Water
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