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charle [14.2K]
4 years ago
14

Need to know the process.

Chemistry
1 answer:
erastova [34]4 years ago
7 0
To calculate ΔH of reaction, let's use the following formula

ΔH of reaction= [ΔH of products] - [ΔH of reactants]

note: keep in mind that you have to multiply each value by its coefficient. 

ΔH of reaction= [ ΔH CO2 + ΔH H2O + ΔH Na2CO3] - [ΔH NaHCO3]

ΔH of reaction = [ -393.5 + -241.8 + -1130.9] - [ 2 x -947.7] 

ΔH of reaction= 129.2 kJ
since ΔH is positive, the reaction is endothermic
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