Calculate the change of enthalpy for the reaction 2Al (s) + 3Cl2 (g) --> 2AICI3 (s) from the following reactions: Reaction 1: 2AI (s) + 6HCI (aq) --> 2AICI3 (aq) + 3H2 (g) Change in enthalpy: -1049 k) Reaction 2: HCI (g) --> HCI (aq) Change in enthalpy: -74.8 kJ/mol Reaction 3: H2 (g) + Cl2 (g) --> 2HCI (g) Change in enthalpy: -1845. kJ/mol Reaction 4: AICI3 (S) --> AICI3 (aq) Change in enthalpy: -323. kJ/mol

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Chapter4: Energy And Chemical Reactions
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Calculate the change of enthalpy for the reaction 2AI (s) +
3C12 (g) --> 2AICI3 (s) from the following reactions:
Reaction 1: 2AI (s) + 6HCI (aq) --> 2AICI3 (aq) + 3H2 (g)
Change in enthalpy: -1049 kJ
Reaction 2: HCI (g) --> HCI (aq)
Change in enthalpy: -74.8 kJ/mol
Reaction 3: H2 (g) + Cl2 (g) --> 2HCI (g)
Change in enthalpy: -1845. kļ/mol
Reaction 4: AICI3 (s) --> AICI3 (aq)
Change in enthalpy: -323. kJ/mol
Include the following:
• The numerical answer with correct units.
• State which reactions, if any, you had to "Flip".
• State which reactions you had to multiply, if any, to get
the correct amount of the compound.
Transcribed Image Text:Calculate the change of enthalpy for the reaction 2AI (s) + 3C12 (g) --> 2AICI3 (s) from the following reactions: Reaction 1: 2AI (s) + 6HCI (aq) --> 2AICI3 (aq) + 3H2 (g) Change in enthalpy: -1049 kJ Reaction 2: HCI (g) --> HCI (aq) Change in enthalpy: -74.8 kJ/mol Reaction 3: H2 (g) + Cl2 (g) --> 2HCI (g) Change in enthalpy: -1845. kļ/mol Reaction 4: AICI3 (s) --> AICI3 (aq) Change in enthalpy: -323. kJ/mol Include the following: • The numerical answer with correct units. • State which reactions, if any, you had to "Flip". • State which reactions you had to multiply, if any, to get the correct amount of the compound.
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