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@X@user.full_name@X@ @GMU: To what temperature would you have to heat Zn(l) to cause its vapor pressure to become 284.7 mm Hg if its heat of vaporization and boiling point are 131.00 kJ/mol and 1180.2 K, respectively?

@X@user.full_name@X@ @GMU: What is the temperature at which the reaction below becomes spontaneous, if the standard entropies of reactants and products at 25oC are So (C(gr)) = 5.74 J/mol*K, So(H2(g)) = 130.68 J/mol*K, and So (C6H12(l)) = 204.4000J/mol*K and the heat of formation of C6H12(l)) is -156.4000 kJ/mol?6C(gr) + 6H2(g) → C6H12(l)

@X@user.full_name@X@ @GMU: Which base listed below would be the best to creat a buffer having a pH of 9.6569?

@X@user.full_name@X@ @GMU: How much energy in kJ is released to form one mole of 71Ga from protons, electrons, and neutrons if the nucleus has a mass of 70.924701 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: Determine the molality of a 7.279 wt % aqueous solution of NaF.

@X@user.full_name@X@ @GMU: By how much would the rate of reaction (see below) change if the concentration of CO increased by a factor of 2.441. The rate law of this reaction is Rate = k[NO2]2.NO2(g) + CO(g) → CO2(g) + NO(g)

John Schreifels @GMU: What is the change in mass of 15N when it is formed from protons, electrons and neutrons if the atom has a mass of 15.00010897 amu? The masses of the proton, electron and neutron are 1.00728 amu, 0.000549 amu and 1.00867 amu, respectively.

John Schreifels @GMU: What is the balanced reaction for the following galvanic cell?Ni(s)| Ni2+(aq) || Fe3+(aq) | Fe(s)

@X@user.full_name@X@ @GMU: Which product in the reaction below is an acid (this one first in the answer) and which reactant is an acid?HClO + HO2- → ClO- + H2O2

@X@user.full_name@X@ @GMU: What is Kp for the reaction below, if Kc = 8.53e-5 at 439.0°C?2A(s) + 5B(g) → 4C(g)