@X@user.full_name@X@ @GMU: NaF has a face-centered cubic unit cell in which the F- anions occupy corners and face centers, while the cations fit into the hole between adjacent anions. What is the radius of F- if the ionic radius of Na+ is 102.9 pm and the density of NaF is 2.558 g/cm3?

@X@user.full_name@X@ @GMU: What would the be after addition of 11.35 mL of 0.1000 M NaOH to 25.00 mL of 0.1000 HA (a weak acid, Ka = 1.06e-5)?

@X@user.full_name@X@ @GMU: What is the cell voltage for the following cell?2Cu+(aq) + Pb(s) → 2Cu(s) + Pb2+(aq) ΔGo = -125.430 kJ

@X@user.full_name@X@ @GMU: Determine the molality of a 5.693 wt % aqueous solution of LiI.

@X@user.full_name@X@ @GMU: The reaction below is a exothermic reaction. What would one have to do to increase the size of the equilibrium constant?H2(g) + O2(g)→2H2O(g)

@X@user.full_name@X@ @GMU: HO2 at 25°C reacts to form hydrogen peroxide and oxygen according to second order kinetics (see reaction below). The half-life for this reaction was measured to be 5.69e-2 s when the initial concentration of HO2 was 1.25e-8 M. What is the rate constant for this reaction?HO2(g) + HO2(g) → H2O2(g) + O2(g)

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 (C5H10(g)) = 347.7700 J/mol*K and the heat of formation of C5H10(g)) is -20.9300 kJ/mol.5C(gr) + 5H2(g) → C5H10(g)

@X@user.full_name@X@ @GMU: The osmotic pressure of an unknown solution is 1.479 atm at 27.56 °C. Which of the solutions below is the most likely one? Assume any salt is completely ionic!

@X@user.full_name@X@ @GMU: If you raise the pressure from what it is at point 1 to that of point 5, you go from a ___ to _____.

@X@user.full_name@X@ @GMU: What is the conjugate base and base dissociation constant of CH3COOH if its acid dissociation constant is 1.760×10-5 ?