Upon heating, baking soda decomposes as follows, creating the holes in baked bread: 2NaHCO3(s) --> Na2CO3(s)+CO2(g)+H2O(l) When 39.0 g NaHCO3 decomposes, the change in energy is-30.0 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
Upon heating, baking soda decomposes as follows, creating the holes in baked bread: 2NaHCO3(s) --> Na2CO3(s)+CO2(g)+H2O(l) When 39.0 g NaHCO3 decomposes, the change in energy is-30.0 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
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter12: Chemical Equilibrium
Section: Chapter Questions
Problem 85QRT
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Upon heating, baking soda decomposes as follows, creating the holes in baked bread:
2NaHCO3(s) --> Na2CO3(s)+CO2(g)+H2O(l)
When 39.0 g NaHCO3 decomposes, the change in energy is-30.0 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
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