Question
Write a net ionic equation for the overall reaction that occurs when aqueous solutions of...
Write a net ionic equation for the overall reaction that occurs when aqueous solutions of carbonic acid and sodium hydroxide are combined. Assume excess base.
Answers
H+ [from carbonic acid] + OH-[from base] ----->H2O(l)
Molecular equation:
2 NaOH(aq) + H2CO3(aq) => Na2CO3(aq) + 2 H2O(l)
Complete ionic equation (expand strong electrolytes into ions):
2 Na+(aq) + 2 OH-(aq) + H2CO3(aq)
=> 2 Na+(aq) + CO32-(aq) + 2 H2O(l)
Net ionic equation (cancel common ions in complete ionic equation):
2 OH-(aq) + H2CO3(aq) => CO32-(aq) + 2 H2O(l)
H+ [from H2CO3] + OH- [ base] ----->H2O
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