@X@user.full_name@X@ @GMU: What must the reaction quotient Q be, if the free energy is -846.229 kJ at 25.0oC?4C2H2(g) + 5 H2(g) → C8H18(g) ΔGo = -819.870 kJ.

@X@user.full_name@X@ @GMU: What is the solubility in g/L of CH4 at a partial pressure of 714.3 torr, if the solubility at a partial pressure of 531.0 torr is 0.01457 g/L?

@X@user.full_name@X@ @GMU: Determine the molality of a 7.239 wt % aqueous solution of LiBr.

@X@user.full_name@X@ @GMU: The osmotic pressure of a 13.236 mM solution of KOH is 0.423 atm at 16.03 °C. How many ions per formula unit of KOH must there be? The compound may not be completely ionic.

@X@user.full_name@X@ @GMU: What is the conjugate base and base dissociation constant of H3PO4 if its acid dissociation constant is 7.520×10-3 ?

John Schreifels @GMU: What is the change in mass of 197Au when it is formed from protons, electrons and neutrons if the atom has a mass of 203.97302 amu? The masses of the proton, electron and neutron are 1.00728 amu, 0.000549 amu and 1.00867 amu, respectively.

@X@user.full_name@X@ @GMU: What is the pOH of 2.54e-4 M HBr?

@X@user.full_name@X@ @GMU: What is the fraction of A remaining after 96.231 minutes if the first order rate constant is 2.100e-4 s-1?

@X@user.full_name@X@ @GMU: What must the reaction quotient Q be, if the free energy is -173.628 kJ at 25.0oC?C2H2(g) H2(g) → C2H4(g) ΔGo = -141.144 kJ.

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 (C2H6(g)) = 229.6000 J/mol*K and the heat of formation of C2H6(g)) is -84.6800 kJ/mol.2C(gr) + 3H2(g) → C2H6(g)