H2C2O4 (aq) + 2 NaHCO3 (s) → Na2C2O4 (aq) + 2 H2O (ℓ) + 2 CO2 (g)

Back to reactions list

 

Reaction Type:

Double Displacement/Decomposition of a Carbonate

Stoichiometry

Enter a mass or volume in one of the boxes below. Upon hitting submit, the stoichiometric equivalents will be calculated for the remaining reactants and products. All gases are assumed to be at STP.

H2C2O4         Mass: g  or Solution Volume: mL of Concentration: mol/L
NaHCO3         Mass: g
Na2C2O4        Mass: g  or Solution Volume: mL of Concentration: mol/L
H2O            Mass: g
CO2            Mass: g  or Gas Volume: L

Enthalpy of Reaction

[1ΔHf(Na2C2O4 (aq)) + 2ΔHf(H2O (ℓ)) + 2ΔHf(CO2 (g))] - [1ΔHf(H2C2O4 (aq)) + 2ΔHf(NaHCO3 (s))]
[1(-1305.3) + 2(-285.83) + 2(-393.51)] - [1(-825.1) + 2(-947.68)] = 56.48 kJ
56.48 kJ     (endothermic)

Free Energy of Reaction (at 298.15 K)

From ΔGf° values:
[1ΔGf(Na2C2O4 (aq)) + 2ΔGf(H2O (ℓ)) + 2ΔGf(CO2 (g))] - [1ΔGf(H2C2O4 (aq)) + 2ΔGf(NaHCO3 (s))]
[1(-1197.7) + 2(-237.18) + 2(-394.38)] - [1(-673.9) + 2(-851.86)] = -83.1999999999998 kJ
-83.20 kJ     (spontaneous)

From ΔG = ΔH - TΔS:
-86.93 kJ     (spontaneous)

Equilibrium Constant, K (at 298.15 K)

377416104772956
This process is favorable at 25°C.