Post Utme Futa 2023 Chemistry Question 31

Practice objective / multiple choice question 31 from the 2023 Post Utme Futa Chemistry examination.

Post Utme Futa 2023 Chemistry Objective / Multiple Choice
Question 31 POST_UTME_FUTA • 2023 • CHEMISTRY • objective

Calculate the s\tandard enthalpy change (ΔH°) for the reaction: 2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g). Given that the s\tandard enthalpy of formation (ΔHf°) for AlCl3(aq) is -704.2 kJ/mol and for H2(g) is 0 kJ/mol. The s\tandard enthalpy of formation for Al(s) is 0 kJ/mol and for HCl(aq) is -167.2 kJ/mol.

Answer Options

Correct Answer A. -1668.4 kJ/mol
B. -1668.8 kJ/mol
C. -1668.2 kJ/mol
D. -1668.6 kJ/mol
Correct Answer
A
Correct Option:
-1668.4 kJ/mol

About This Question

This is Post Utme Futa 2023 Chemistry Question 31. It is one of the objective questions from the 2023 Post Utme Futa Chemistry examination.

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