@X@user.full_name@X@ @GMU: What is the boiling point elevation when 19.28 g of lysine (formula mass = 146.00 g/mol) is dissolved in 158.43 g of benzene? The boiling point elevation constant is 2.530 (°C*kg)/mol.

Consider the reaction.H2(g) + I2(s) ⇋2HI(g)What is the correct expression for Kc?

@X@user.full_name@X@ @GMU: What is the solubility in mol/L of CO at a partial pressure of 296.4 torr, if the solubility at a partial pressure of 401.3 torr is 0.0005491 mol/L?

@X@user.full_name@X@ @GMU: It took 482.3 s for 68.56% of a substance to react according to first-order kinetics. What is the value of the rate constant?

@X@user.full_name@X@ @GMU: When 0.3871 g of citric acid was dissolved in 103.1 mL of water, the osmotic pressure at 14.66°C was 0.4617 atm. What is the formula mass of this compound?

@X@user.full_name@X@ @GMU: The osmotic pressure of an unknown solution is 0.337 atm at 14.10 °C. Which of the solutions below is the most likely one? Assume any salt is completely ionic!

@X@user.full_name@X@ @GMU: What is the activation energy (in kJ/mol) for the reaction below if the rate constants are 1.800e-4 s-1 at 477.00°C and 4.60e-4 s-1 at 493.63°C?Cyclopropane → Propene

@X@user.full_name@X@ @GMU: A mixture containing an initial concentration of 0.1074 M for H2 and 0.0808 M for Cl2 is allowed to come to equilibrium (see reaction below). What must be the equilibrium concentration of HCl?H2(g) + Cl2(g) → 2HCl(g) Kc = 5.00e16

@X@user.full_name@X@ @GMU: How many grams of potassium chloride, KCl, would be required to prepare a 0.1175 m KCl solution by combining this compound with 0.4495 L of water (assume a density of 1.00 g/mL)? The molecular weight is 74.551 g/mol.

@X@user.full_name@X@ @GMU: Initially there were equilibrium concentrations of 0.1474 M A, 0.3333 M B, and 0.1474 M C. Which change will cause the equilibrium to shift from right to left? Use the reaction below.4A → 3 B +3 C Kc = 0.504