The correct net ionic equation for the reaction of aqueous hydrocyanic acid and aqueous sodium hydroxide is
Question
The correct net ionic equation for the reaction of aqueous hydrocyanic acid and aqueous sodium hydroxide is
Solution
The reaction between hydrocyanic acid (HCN) and sodium hydroxide (NaOH) can be written as follows:
HCN(aq) + NaOH(aq) → NaCN(aq) + H2O(l)
This is the molecular equation. To write the net ionic equation, we first need to determine the strong electrolytes. These are compounds that completely dissociate into ions in solution. In this case, NaOH and NaCN are strong electrolytes.
So, we can write the complete ionic equation as:
HCN(aq) + Na+(aq) + OH-(aq) → Na+(aq) + CN-(aq) + H2O(l)
In the net ionic equation, we cross out the spectator ions. These are ions that do not participate in the reaction. Here, the Na+ ions are the spectator ions.
So, the net ionic equation is:
HCN(aq) + OH-(aq) → CN-(aq) + H2O(l)
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