2NaHCO3(s)–> Na2CO3(s)+CO2(g) +H2O(l)
When 30.0 g NaHCO3 decomposes, the change in energy is-23.1 kJ. Use this information and the additional information provided to calculate the ΔH°f of NaHCO3.
| Substance | ΔH°f (kJ/mol) |
| H2O(l) | –286 |
| CO2(g) | –394 |
| Na2CO3(s) | –1131 |
ΔH°f of NaHCO3 ___kJ/mol ?
