@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: Determine the molality of a 8.983 wt % aqueous solution of NaF.

@X@user.full_name@X@ @GMU: What is the solubility in g/L of O2 at a partial pressure of 311.9 torr, if the solubility at a partial pressure of 518.4 torr is 0.03012 g/L?

@X@user.full_name@X@ @GMU: Which pair of substances are bases in the reaction below?ClO-4 + HClO → HClO4 + ClO-

@X@user.full_name@X@ @GMU: For a galvanic cell, the cathode has a ____ sign and is the site of ____.

@X@user.full_name@X@ @GMU: The cell potential was -0.773 V at 25oC and a Cu+(aq) concentration of 0.103 M. What was the pH of the solution? The H2(g) pressure was 1 atm at 25oC.2H+(aq) + 2Cu(s) → 2Cu+(aq) + H2(g) Ecoell = -0.5200 V

@X@user.full_name@X@ @GMU: What is the pOH of a 0.1275 M HNO2 ? See reaction belowHNO2 + H2O → NO-2 + H3O+ Ka = 4.600×10-4

@X@user.full_name@X@ @GMU: How much time in days would it take for a 1.9910 g sample of 14C to decay to a mass of 0.7346 g if it has a half-life of 1.807e11 s.

@X@user.full_name@X@ @GMU: By how much would the rate of reaction (see below) change if the concentration of H+ increased by a factor of 1.584. The rate law of this reaction is Rate = k2.BrO3- + 5Br- + 6H+ → 3Br2 + 3H2O

@X@user.full_name@X@ @GMU: By how much would the rate of reaction (see below) change if the concentration of CH3CHO increased by a factor of 1.542. The rate law of this reaction is Rate = k3/2.CH3CHO(g) → CH4(g) + CO(g)