Baking soda thrown on a grease fire will decompose in the following manner:

2NaHCO_3(s) Na₂CO_3(s) + H₂O_(l) + CO_2(g)

Use Hess's law of equations to find the rH_r for this reaction in kJ. [3 marks]

Data:

rH_f NaHCO₃(s) = -948 kJ/mol rH_f Na₂CO₃(s) = -1131 kJ/mol

rH_f H₂O() = -188 kJ/mol rH_f CO₂(g) = -394 kJ/mol

Baking soda thrown on a grease fire will decompose in the following manner: 2NaHCO3(s)aNa2CO3(s)+H2O(t)+CO2(g) Use Hess's law of equations to find the rHr for this reaction in kJ. [3 marks] Data: rHfNaHCO3(s)rH1H2O()=948kJ/mol=188kJ/molrHfNa2CO3(s)=1131kJ/molrHfCO2(g)=394kJ/mol