Exercise on Acid-Base Reactions with Gas Formation: Solutions
Question: Acid-base reactions with gas formation (Molecular Equation & Net Ionic Equation):
HCl(aq) + NaHCO3(aq) → NaCl(aq) + H2CO3(aq) (Molecular Equation)
Carbonic acid ( H2CO3) is unstable and decomposes to form CO2 gas and water according to:
H2CO3(aq) → CO2(g) + H2O(l)
The net ionic equation can be obtained as follows:
2H+(aq) + Cl−(aq) + Na+(aq) + H2CO3− (aq) → H2O(l) + Cl−(aq) + Na+(aq) + CO2(g)
2H+(aq) + H2CO3− (aq) → H2O(l) + CO2(g) (Net Ionic Equation)
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Date of last modification: Summer , 2019