Estimate the Standard Molar Entropy of 1 $\Delta$ S ^$\circ$ for the Reaction,Mg(s)+ 2 HCl(aq)

question 123

Multiple Choice

Estimate the standard molar entropy of 1.00 M aqueous Mg²⁺ using the following information: $\Delta$ S ^$\circ$ for the reaction,Mg(s) + 2 HCl(aq) $\leftrightarrows$ MgCl₂(aq) + H₂(g) ,is -43.02 J/K.

• A)"-52.1 J/K"
• B)"+140.J/K"
• C)"+138 J/K"
• D)"-138 J/K"
• E)"-140.J/K"

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