Question
If BaCl2 + Na2SO4 (aq) react , do precipitate formed? If sure then write the balanced net ionic equation for the precipitate formed.
Answers
GPT-4o mini
When barium chloride (BaCl₂) reacts with sodium sulfate (Na₂SO₄), a precipitate of barium sulfate (BaSO₄) is indeed formed. The balanced molecular equation for the reaction is:
\[ \text{BaCl}_2 (aq) + \text{Na}_2\text{SO}_4 (aq) \rightarrow \text{BaSO}_4 (s) + 2 \text{NaCl} (aq) \]
To write the balanced net ionic equation, we first need to identify the ions involved in the reaction. Barium chloride dissociates into barium ions (Ba²⁺) and chloride ions (Cl⁻), while sodium sulfate dissociates into sodium ions (Na⁺) and sulfate ions (SO₄²⁻):
1. **Dissociation of reactants:**
- BaCl₂ → Ba²⁺ (aq) + 2 Cl⁻ (aq)
- Na₂SO₄ → 2 Na⁺ (aq) + SO₄²⁻ (aq)
The net ionic equation includes only the ions that participate in the formation of the precipitate, which is BaSO₄:
2. **Net Ionic Equation:**
\[ \text{Ba}^{2+} (aq) + \text{SO}_4^{2-} (aq) \rightarrow \text{BaSO}_4 (s) \]
In this reaction, the barium ions and sulfate ions combine to form the solid precipitate, barium sulfate. The sodium ions and chloride ions are spectator ions and do not participate in the formation of the precipitate. Thus, they are not included in the net ionic equation.
\[ \text{BaCl}_2 (aq) + \text{Na}_2\text{SO}_4 (aq) \rightarrow \text{BaSO}_4 (s) + 2 \text{NaCl} (aq) \]
To write the balanced net ionic equation, we first need to identify the ions involved in the reaction. Barium chloride dissociates into barium ions (Ba²⁺) and chloride ions (Cl⁻), while sodium sulfate dissociates into sodium ions (Na⁺) and sulfate ions (SO₄²⁻):
1. **Dissociation of reactants:**
- BaCl₂ → Ba²⁺ (aq) + 2 Cl⁻ (aq)
- Na₂SO₄ → 2 Na⁺ (aq) + SO₄²⁻ (aq)
The net ionic equation includes only the ions that participate in the formation of the precipitate, which is BaSO₄:
2. **Net Ionic Equation:**
\[ \text{Ba}^{2+} (aq) + \text{SO}_4^{2-} (aq) \rightarrow \text{BaSO}_4 (s) \]
In this reaction, the barium ions and sulfate ions combine to form the solid precipitate, barium sulfate. The sodium ions and chloride ions are spectator ions and do not participate in the formation of the precipitate. Thus, they are not included in the net ionic equation.