Question

Які слабкі електроліти й неелектроліти будуть утворюватися в розчині, що містить йони H^+,Ba ^ 2+ , OH^ - , Cu^ 2+ , SO4^ 2, K ^ +, Cl^ - ,Mg^2+ ? Напишіть рівняння реакцій їх утворення.​

Answer 1

Ответ:

Слабкими електролітами, які утворяться в розчині з містить йони H^+, Ba^2+, OH^-, Cu^2+, SO4^2-, K^+, Cl^-, Mg^2+ будуть: HCl, CuCl2, K2SO4, MgCl2.

Рівняння реакцій утворення:

1) HCl:

H^+ + Cl^- ↔ HCl

2) CuCl2:

Cu^2+ + 2Cl^- ↔ CuCl2

3) K2SO4:

2K^+ + SO4^2- ↔ K2SO4

4) MgCl2:

Mg^2+ + 2Cl^- ↔ MgCl2

Неелектроліти не утворяться, оскільки всі іони, які містяться у розчині, є електролітами, тобто дисоціюють у воді і утворюють іони.

Answer 2

Weak Electrolytes and Non-Electrolytes in Solution

In a solution containing the ions H^+, Ba^2+, OH^-, Cu^2+, SO4^2-, K^+, Cl^-, and Mg^2+, various substances can be classified as weak electrolytes or non-electrolytes based on their ability to conduct electricity in solution.

Weak Electrolytes are substances that partially dissociate into ions when dissolved in water, resulting in a weak electrical conductivity. They do not completely ionize in solution. Examples of weak electrolytes in the given solution include:

1. H2SO4 (sulfuric acid): It is a strong acid that ionizes completely in water, producing H^+ and SO4^2- ions. However, in a dilute solution, it can be considered a weak electrolyte due to its partial dissociation. - The reaction equation for the formation of H^+ and SO4^2- ions from H2SO4 is: H2SO4 -> 2H^+ + SO4^2-.

2. CuSO4 (copper(II) sulfate): It is a strong electrolyte that completely dissociates into Cu^2+ and SO4^2- ions in water. However, in a dilute solution, it can be considered a weak electrolyte due to its partial dissociation. - The reaction equation for the formation of Cu^2+ and SO4^2- ions from CuSO4 is: CuSO4 -> Cu^2+ + SO4^2-.

Non-Electrolytes are substances that do not dissociate into ions when dissolved in water, resulting in no electrical conductivity. They do not ionize in solution. Examples of non-electrolytes in the given solution include:

1. BaSO4 (barium sulfate): It is an insoluble compound that does not dissociate into ions in water. Therefore, it is considered a non-electrolyte. - The reaction equation for the formation of BaSO4 is: Ba^2+ + SO4^2- -> BaSO4.

2. Mg(OH)2 (magnesium hydroxide): It is a sparingly soluble compound that only partially dissociates into Mg^2+ and OH^- ions in water. Therefore, it can be considered a weak electrolyte. - The reaction equation for the formation of Mg^2+ and OH^- ions from Mg(OH)2 is: Mg(OH)2 -> Mg^2+ + 2OH^-.

3. KCl (potassium chloride): It is a soluble compound that completely dissociates into K^+ and Cl^- ions in water. Therefore, it is considered a strong electrolyte. - The reaction equation for the formation of K^+ and Cl^- ions from KCl is: KCl -> K^+ + Cl^-.

Please note that the classification of weak electrolytes and non-electrolytes can vary depending on the concentration of the solution and other factors. The given classification is based on general properties and behavior in dilute solutions.

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