a. Calculate the theoretical heat of reaction between the Zn and copper sulphate using the following enthalpy of formations: Formula is: ΔH0rxn = ∑nΔH0f (products) - ∑n (reactants) Zn(s) – (0 kJ/mol) ZnSO4 (aq) -  (-152.4kJ/mol) Cu(s) – (0 kJ/mol) CuSO4 (aq) – (64.77 kJ/mol)   Answer: Theoretical heat of reaction = -217.17 kJ/mol

Chemistry
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Chapter1: Chemical Foundations
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a. Calculate the theoretical heat of reaction between the Zn and copper sulphate using the following enthalpy of formations:

Formula is: ΔH0rxn = ∑nΔH0(products) - ∑n (reactants)

Zn(s) – (0 kJ/mol)

ZnSO4 (aq) -  (-152.4kJ/mol)

Cu(s) – (0 kJ/mol)

CuSO4 (aq) – (64.77 kJ/mol)

 

Answer:

Theoretical heat of reaction = -217.17 kJ/mol

 

b. In an experiment, 2 grams of zinc and 150 mL aq CuSO4 were made to react, then as observed, the temperature rises from 300C to 410C. What is the heat of the reaction between the zinc and copper sulphate (in kJ/mole)? Is the value near the theoretical value (found in item a)?

 

 

Note: Answer the problem b only and relate to its question.

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