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

Question 75

Multiple Choice

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


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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