Question

a Nitrous acid and sodium hydrogen carbonate, NaHCO3, are mixed in water. Choose a balanced net ionic equation for the acid-base reaction that could, in principle, occur. HNO2() + NaHCO3(s) + H2O(l) Na+ (aq) + HCO3(aq) + NO3- (aq) + H+ (aq) HNO2 (aq) + NaHCO3(aq) = NaNO2 (aq) + H2CO3(aq) HNO2 (aq) + HCO3- (aq) = NO2 (aq) + H2CO3(aq) HNO2 (aq) + NaHCO3(aq) = NaNO2 (aq) + H2O() + CO2(g)

Answer 1

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Answer :- ~ NaNO₂ (aq) + H₂O les + CO2(g) HNO₂ (aq) + NaHCO₃(aq) - Steps to write net ionic equation :- 1. Balance the equation. Since the eqni és already balanced skip this step. 2. Break all soluble lie break the aqueous compound to their respective in. leane the liquid and gascous atom unchanged. NaNO₃(aq) + H₂O(l) & COrg) HNO₂ (aq) + NaHCO3(aq)) - Ht (aq) + Notacaq) + Naycaq) + HCO3 Caq) - Nacaq) + Noz (aq) + H2 Oll) + Colg) common ions present in both side present in equal quantity. 3. 3. cance the present caucle the which are H₂O(l) + CO2(g) 4+ (aq) + HCO3(aq) - Hence, option 4 is correct answer.

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