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3 years ago

Need to know the process.

Chemistry

1 answer:

erastova [34]3 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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Mᵣ: 28.01 17.03

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$\text{Mass of N$_{2}$} =\text{7.046 mol N$_{2}$} \times \dfrac{\text{28.01 g N$_{2}$}}{\text{1 mol N$_{2}$}} = \textbf{197.4 g N$_{2}$}\\\\\text{The reaction requires $\large \boxed{\textbf{197.4 g}}$ of N$_{2}$}$

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