John Schreifels @GMU: What is the total entropy change at 25…

John Schreifels @GMU: What is the total entropy change at 25oC for the reaction below, if the standard entropies of reactants and products are So(C(gr)) = 5.74 J/mol*K, So (H2(g)) = 130.68 J/mol*K, and So (C6H6(g)) = 269.2000J/mol*K and the heat of formation of C6H6(g)) is 82.9300 kJ/mol.C6H6(g) → 6C(gr) + 3H2(g)

@X@user.full_name@X@ @GMU: Calculate the pOH of 101.56 mL of…

@X@user.full_name@X@ @GMU: Calculate the pOH of 101.56 mL of a buffer initially consisting of 0.1517 M CH3(CH2)2CH2NH2 and 0.1119 M CH3(CH2)2CH2NH3Br after addition of 0.0021 mol of HCl. Assume that no volume change occurs after addition of the acid. The Kb of CH3(CH2)2CH2NH2 is 4.10e-4