Al2(CO3)3 (s) è Al2O3 (s) + 3 CO2 (g)           ∆H = +579 kJ             a. What kind of chemical reaction is...

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Chemistry

Al2(CO3)3 (s)è Al2O3 (s) + 3 CO2(g)           ∆H= +579kJ            

a. What kind of chemical reaction is taking place? Is it endo-or exothermic? Explain how you know both answers.

b. Predict the change in enthalpy for each of the followingreactions:

         1. 5 Al2(CO3)3(s) è 5 Al2O3 (s) + 15CO2(g)           ∆H= ??

         2. 3 Al2O3 (s) + 9 CO2(g) è 3 Al2(CO3)3(s)            ∆H= ??

         3. Write the balanced thermochemical equation that will have ∆H =-2316 kJ

c. How much heat is required to react 5.00 grams of the aluminumcarbonate?

d. If 5250 kJ of heat is added to aluminum carbonate, how manygrams of aluminum oxide will be produced?

e. Using the enthalpies of formation found in the appendix ofyour textbook and the thermochemical equation above, calculate theenthalpy of formation of solid aluminum carbonate

Answer & Explanation Solved by verified expert
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During the course of exothermic reaction heat is generated and hence enthalpy change is ve When deltaH is ve the reaction is endothermic so the reaction Al2CO33 Al2O3s3CO2g deltaH 579 Kj 1 is endothermic reaction as deltaH is ve when reaction1 is multiplied with 5 the equation becomes    See Answer
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