Chapter 10: Problem 48
Use the solubility rules to predict whether the following silver salts are soluble or insoluble in water: (a) \(\mathrm{AgBr}(s)\) (b) \(\mathrm{AgNO}_{3}(s)\) (c) \(\mathrm{Ag}_{2} \mathrm{~S}(s)\) (d) \(\mathrm{AgClO}_{4}(s)\) (e) \(\mathrm{Ag}_{2} \mathrm{CO}_{3}(s)\)
Short Answer
Expert verified
AgBr, Ag鈧係, and Ag鈧侰O鈧 are insoluble; AgNO鈧 and AgClO鈧 are soluble.
Step by step solution
01
Analyze Silver Bromide, AgBr
According to the solubility rules, most bromides (Br鈦) are soluble, except for those paired with silver (Ag鈦), lead (Pb虏鈦), or mercury (Hg鈧偮测伜). Therefore, silver bromide (AgBr) is insoluble in water.
02
Analyze Silver Nitrate, AgNO鈧
The solubility rule states that all nitrate (NO鈧冣伝) salts are soluble in water. As a result, silver nitrate (AgNO鈧) is soluble in water.
03
Analyze Silver Sulfide, Ag鈧係
Sulfides (S虏鈦) are generally insoluble in water, except for those of the alkali metals, alkaline earth metals, or ammonium. Silver sulfide (Ag鈧係) does not fall into these exceptions and is therefore insoluble in water.
04
Analyze Silver Perchlorate, AgClO鈧
Perchlorates (ClO鈧勨伝) are generally soluble in water irrespective of the cation they are paired with. Consequently, silver perchlorate (AgClO鈧) is soluble in water.
05
Analyze Silver Carbonate, Ag鈧侰O鈧
Carbonates (CO鈧兟测伝) are generally insoluble, with exceptions for those containing alkali metals and ammonium. Since silver carbonate (Ag鈧侰O鈧) is not one of these exceptions, it is insoluble in water.
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.
silver salts
Silver salts are compounds formed by the combination of silver ions (Ag鈦) with various anions. These salts exhibit diverse solubility behaviors depending on the anion they are paired with. Silver salts play important roles in chemistry and industry. Understanding these compounds involves knowing their solubility in water, which is crucial in predicting their behavior in aqueous solutions.
For example:
For example:
- Silver bromide (AgBr) is a silver salt that is generally insoluble in water due to the presence of the bromide ion, which tends to form insoluble complexes with silver.
- Silver nitrate (AgNO鈧) is a notable exception as it is typically soluble. This solubility is significant in a variety of chemical analyses and reactions.
solubility prediction
Solubility prediction is a fundamental process in chemistry that involves determining whether a compound will dissolve in water. It is based on a set of rules known as the solubility rules. These rules help chemists understand the interactions between ions in a solution.
With silver salts, we use these rules to predict solubility:
With silver salts, we use these rules to predict solubility:
- Sulfides (e.g., Ag鈧係) are typically insoluble, except the ones with alkali metals and some specific cases.
- Nitrates (e.g., AgNO鈧) are almost always soluble, so they can freely dissolve in water.
silver compounds
Silver compounds are chemical substances that include silver ions and other elements. They display unique properties and uses but also need to be properly understood in terms of their solubility.
Let's look at some specific examples:
Let's look at some specific examples:
- Silver sulfide (Ag鈧係): This compound is often used in industrial applications but will not dissolve in water, making it valuable for certain purposes where durability in moist conditions is essential.
- Silver perchlorate (AgClO鈧): Known for its high solubility, it is used in situations where both the silver ion and perchlorate ion are desired in a solution.
aqueous solutions
Aqueous solutions are mixtures where water is the solvent. They are common in both natural and industrial processes. Understanding which substances can dissolve in water is crucial for predicting how different compounds will behave in aqueous environments.
For example, when working with silver salts:
For example, when working with silver salts:
- Silver nitrate (AgNO鈧), being soluble, will completely dissolve, making it readily available for reactions in a solution.
- Silver carbonate (Ag鈧侰O鈧), on the other hand, remains mostly insoluble, meaning it will precipitate out of an aqueous mixture.