@X@user.full_name@X@ @GMU: Determine the molality of a 6.086 wt % aqueous solution of LiI.

John Schreifels @GMU: What is Kp for the reaction below, if Kc = 6.26e-5 at 50.9°C?3A(s) + 2B(g) → 4C(g)

John Schreifels @GMU: What must the reaction quotient Q be, if the free energy is -1.04e3 kJ at 25.0oC?5C2H2(g) + 6 H2(g) → C10H22(g) ΔGo = -1.01e3 kJ.

@X@user.full_name@X@ @GMU: Which pair of substances are bases in the reaction below?HI + HS- → H2S + I-

@X@user.full_name@X@ @GMU: RbF 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 its density if the ionic radii of Rb+, F- ions are 154.2 pm and 136.0 pm, respectively?

@X@user.full_name@X@ @GMU: What is the standard free energy change for the ionization of NH+4 acid, if its Ka is 5.60e-10.

@X@user.full_name@X@ @GMU: Calculate the of 105.66 mL of a buffer initially consisting of 0.1353 M N2H4 and 0.1741 M N2H5Cl after addition of 0.0022 mol of HCl. Assume that no volume change occurs after addition of the acid. The Kb of N2H4 is 8.90e-7

@X@user.full_name@X@ @GMU: What is the balanced reaction at the cathode for the following galvanic cell?Cu(s)| Cu2+(aq) || Sn2+(aq) | Sn(s)

@X@user.full_name@X@ @GMU: The reaction below occurs in the electrochemical cell. Which answer is correct?3Ni2+(aq) + 2Cr(s) → 3Ni(s) + 2Cr3+(aq)

John Schreifels  @GMU: To what temperature would the reaction below need to be heated to have a rate constant of 6.11e-4 s-1 if the rate constant was 1.800e-4 s-1 at 477.00°C and the activation energy was 270.00 kJ/mol?Cyclopropane → Propene