Which one of the following choices represents the net ionic reaction which actually takes place in solution when HClO3(aq) is added to KOH(aq)?Question 1Select one:a.HClO3(aq) + KOH(aq) --> KClO3(aq) + H2O(l)b.H+(aq) + OH-(aq) --> H2O(l)c.HClO3(aq) + OH-(aq) --> ClO3-(aq) + H2O(l)d.H+(aq) + KOH(aq) --> H2O(l) + K+(aq)e.HClO3(aq) + K+(aq) --> KClO3(aq) + H+(aq)
Question
Which one of the following choices represents the net ionic reaction which actually takes place in solution when HClO3(aq) is added to KOH(aq)?Question 1Select one:a.HClO3(aq) + KOH(aq) --> KClO3(aq) + H2O(l)b.H+(aq) + OH-(aq) --> H2O(l)c.HClO3(aq) + OH-(aq) --> ClO3-(aq) + H2O(l)d.H+(aq) + KOH(aq) --> H2O(l) + K+(aq)e.HClO3(aq) + K+(aq) --> KClO3(aq) + H+(aq)
Solution 1
The correct answer is b. H+(aq) + OH-(aq) --> H2O(l).
Here's why:
When HClO3(aq) is added to KOH(aq), it dissociates into H+(aq) and ClO3-(aq). Similarly, KOH(aq) dissociates into K+(aq) and OH-(aq).
However, in a net ionic equation, we only show the species that actually participate in the reaction. The ions that do not participate in the reaction are called 'spectator ions' and are not included in the net ionic equation.
In this case, K+(aq) and ClO3-(aq) are the spectator ions. They do not participate in the reaction and are therefore not included in the net ionic equation.
The H+(aq) from HClO3(aq) and the OH-(aq) from KOH(aq) do react with each other to form H2O(l).
So, the net ionic equation for this reaction is: H+(aq) + OH-(aq) --> H2O(l).
Solution 2
The correct answer is b. H+(aq) + OH-(aq) --> H2O(l).
Here's why:
When HClO3(aq) is added to KOH(aq), it dissociates into H+(aq) and ClO3-(aq). Similarly, KOH(aq) dissociates into K+(aq) and OH-(aq).
However, in a net ionic equation, we only show the species that actually participate in the reaction. The ions that do not participate in the reaction are called spectator ions and are not included in the net ionic equation.
In this case, K+(aq) and ClO3-(aq) are spectator ions. They are present before and after the reaction but do not actually participate in the reaction.
The ions that do participate in the reaction are H+(aq) and OH-(aq), which combine to form H2O(l).
So, the net ionic equation for this reaction is H+(aq) + OH-(aq) --> H2O(l).
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