ulate the molar AH for each trial. Show work neatly for credit.molar AH (kJ/mol)-81.3kJ/molTrial-467.0K5/ml -473.6 kJ/molTrial 2 Trial 32. Write a balanced equation for the two reactions, Mg + HCI, and MgO with HCI.+ H₂ (9)+ 2HCl (aa) MgCl 2 (aq)Mg (s)MgO (s) + 2HCl caq) -> Mg Cl₂ caq) + H20)3. Calculate the average molar AH for each of the reactions.AH =>H Trial+ DH trial 2+ AHTrial33AH-81.3 + (-467.0) + (-473.6)34. Use Hess's Law to determine the AH for the reaction:Mg(s) + 1/202(g)MgO (s)2-340.63kJ/molYou will need to use the experimentally determined AH's and the standard heat of formation ofwater (1) to determine this. Show your work neatly for credit.205.02x83.55. Calculate the % error of your AH as compared to the textbook value for the heat of formationof MgO. Show your work neatly for credit.

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Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter16: Solubility And Complex Ion Equilibria

Section: Chapter Questions

Problem 10RQ: Figure 15-3 outlines the classic scheme for separating a mixture of insoluble chloride salts from...

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Question

ulate the molar AH for each trial. Show work neatly for credit.
molar AH (kJ/mol)
-81.3kJ/mol
Trial
-467.0K5/ml -473.6 kJ/mol
Trial 2 Trial 3
2. Write a balanced equation for the two reactions, Mg + HCI, and MgO with HCI.
+ H₂ (9)
+ 2HCl (aa) MgCl 2 (aq)
Mg (s)
MgO (s) + 2HCl caq) -> Mg Cl₂ caq) + H20)
3. Calculate the average molar AH for each of the reactions.
AH =
>H Trial
+ DH trial 2
+ AH
Trial3
3
AH
-81.3 + (-467.0) + (-473.6)
3
4. Use Hess's Law to determine the AH for the reaction:
Mg(s) + 1/202(g)
MgO (s)
2-340.63kJ/mol
You will need to use the experimentally determined AH's and the standard heat of formation of
water (1) to determine this. Show your work neatly for credit.
205.0
2x83.5
5. Calculate the % error of your AH as compared to the textbook value for the heat of formation
of MgO. Show your work neatly for credit.

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