@X@user.full_name@X@ @GMU: The vapor pressure of benzene, C6H6, (l) at 320.2 K is 257.9 mm Hg. What is the heat of vaporization if its normal boiling point is 353.3 K?

@X@user.full_name@X@   @GMU: To what temperature would the reaction below need to be heated to have a rate constant of 6.09e-4 M-1s-1 if the rate constant was 2.700e-4 M-1s-1 at 327.00°C and the activation energy was 166.00 kJ/mol?H2(g) + I2(g) → 2HI(g)

@X@user.full_name@X@ @GMU: Determine the molality of a 6.932 wt % aqueous solution of LiCl.

@X@user.full_name@X@ @GMU: What is the correct expression for the solubility product of lead chromate?PbCrO4(s) → Pb2+(aq) + CrO42-(aq)

@X@user.full_name@X@ @GMU: How much time in minutes would it take for a 1.9957 g sample of 33P to decay to a mass of 1.1357 g if it has a half-life of 2.160e6 s.

@X@user.full_name@X@ @GMU: The osmotic pressure of a 15.060 mM solution of CaCl2 is 589.249 mm Hg at 29.76 °C. How many ions per formula unit of CaCl2 must there be? The compound may not be completely ionic.

@X@user.full_name@X@ @GMU: The osmotic pressure of a 14.019 mM solution of Fe(NO3)3 is 0.924 atm at 28.97 °C. How many ions per formula unit of Fe(NO3)3 must there be? The compound may not be completely ionic.

@X@user.full_name@X@ @GMU: What would the [H3O+] be after addition of 18.53 mL of 0.1000 M NaOH to 25.00 mL of 0.1000 HA (a weak acid, Ka = 6.66e-5)?

@X@user.full_name@X@ @GMU: Initially there were equilibrium concentrations of 0.3808 M A, 0.2234 M B, and 0.1185 M C. Which change will cause the equilibrium to shift from left to right if the reaction is exothermic? Use the reaction below.6A(aq) → 3B(aq) +2C(aq) K = 1.190

@X@user.full_name@X@ @GMU: What is the solubility in mol/L of CH3Br at a partial pressure of 289.4 torr, if the solubility at a partial pressure of 394.0 torr is 0.08244 mol/L?