Here's the balanced chemical equation:
H₃AsO₄ (aq) + 3NaOH (aq) → Na₃AsO₄ (aq) + 3H₂O (l)
Explanation:
* Arsenic acid (H₃AsO₄) is a weak triprotic acid, meaning it can donate three protons (H⁺).
* Sodium hydroxide (NaOH) is a strong base, providing hydroxide ions (OH⁻).
* The reaction involves the transfer of protons from the acid to the base.
* Sodium arsenate (Na₃AsO₄) is the salt formed by the reaction.
* Water (H₂O) is the other product of the reaction.
Important notes:
* This reaction is exothermic, meaning it releases heat.
* Arsenic compounds are highly toxic. It is crucial to handle them with extreme caution and appropriate safety measures.
* Sodium arsenate is also toxic and should be handled with care.
Overall, the reaction between arsenic acid and sodium hydroxide is a neutralization reaction that forms sodium arsenate and water. It is important to remember the toxicity of these substances and handle them with appropriate safety precautions.
