The reaction of aqueous barium hydroxide and aqueous sodium sulfate is represented by the balanced net ionic equation.
Ba2+(aq) + SO42-(aq) → BaSO4(s)
Give the balanced ionic equation for the reaction. Include the states.
To obtain the balanced ionic equation for the reaction between aqueous barium hydroxide (Ba(OH)2) and aqueous sodium sulfate (Na2SO4), we need to first write the complete ionic equation and then cancel out any spectator ions to obtain the net ionic equation.
Step 1: Write the complete ionic equation.
The complete ionic equation shows all the ions involved in the reaction, including the spectator ions (ions that do not participate in the actual chemical reaction).
Ba2+(aq) + 2OH-(aq) + 2Na+(aq) + SO42-(aq) → Ba2+(aq) + SO42-(aq) + 2Na+(aq) + 2OH-(aq)
Step 2: Cancel out the spectator ions.
In this case, the spectator ions are the Ba2+ and SO42- ions. These ions are present on both sides of the equation and do not participate in the actual reaction. Therefore, we can cancel them out.
Ba2+(aq) + 2OH-(aq) + 2Na+(aq) + SO42-(aq) → Ba2+(aq) + SO42-(aq) + 2Na+(aq) + 2OH-(aq)
(cancel out Ba2+ and SO42-)
2OH-(aq) + 2Na+(aq) → 2Na+(aq) + 2OH-(aq)
Step 3: Simplify the equation.
After canceling out the spectator ions, we can see that the equation is already simplified.
The net ionic equation for the reaction between aqueous barium hydroxide and aqueous sodium sulfate is:
2OH-(aq) + 2Na+(aq) → 2Na+(aq) + 2OH-(aq)
Alternatively, we can also represent it as:
OH-(aq) + Na+(aq) → Na+(aq) + OH-(aq)
This shows that both sodium ions (Na+) and hydroxide ions (OH-) essentially swap places, resulting in no overall change in the chemical equation.
The balanced ionic equation for the reaction of aqueous barium hydroxide (Ba(OH)2) and aqueous sodium sulfate (Na2SO4) is:
Ba2+(aq) + 2OH-(aq) + 2Na+(aq) + SO42-(aq) → BaSO4(s) + 2Na+(aq) + 2OH-(aq)
where the state symbols are:
Ba2+(aq) represents barium ions in aqueous solution,
SO42-(aq) represents sulfate ions in aqueous solution,
BaSO4(s) represents solid barium sulfate formed (precipitate),
2Na+(aq) represents sodium ions in aqueous solution,
2OH-(aq) represents hydroxide ions in aqueous solution.