Asked by student

Baking soda is sodium bicarbonate (NaHCO3). When you heat baking soda, it breaks down into sodium carbonate powder (Na2CO3), water vapor, and carbon dioxide. The enthalpy of this reaction is 129 kJ. Write a correct thermochemical equation for this reaction, explain how you came up with this equation, and explain what it tells you about the reaction.


please help me with this
Answered by DrBob222
The way you have written this post I can't tell if that is 120 kJ/mol or 120 kJ for the reaction as written. I have shown it as 120 kJ/reaction. If it is120 kJ/mol then you would show 240 kJ/reaction.
2NaHCO3 ==> Na2CO3 + CO2 + H2O dH = +120 kJ
Answered by student
no it is just 129 kj
Answered by DrBob222
It must be one or the other.
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