@X@user.full_name@X@ @GMU: When 0.1901 g of aspirin was dissolved in 100.5 mL of water, the osmotic pressure at 10.92°C was 0.2498 atm. What is the formula mass of this compound?

What would be the expected rate law for the mechanism described below?1 NO(g) + 1/2O2(g) → NO2(g) slow 2 NO2(g) → NO(g) + O(g) fast 3 O2(g) + O(g) → O3((g) fast

@X@user.full_name@X@ @GMU: What is the activation energy (in kJ/mol) for the reaction below if the rate constants are 1.050e-3 M-1/2s-1 at 486.00°C and 2.82e-3 M-1/2s-1 at 509.55°C?CH3CHO(g) → CH4(g) + CO(g)

@X@user.full_name@X@ @GMU: When 7.130 g of lysine was dissolved in 107.6 g of benzene, the freezing point was 276.3 K. What is the formula mass of this compound? The freezing point depression constant for benzene is 5.12 (°C*kg)/mol. The melting point and boiling points are 5.50°C and 80.10°C, respectively.

@X@user.full_name@X@ @GMU: The following data was obtained by the method of initial rates. What is the rate law for the reaction of A with B to produce product? o o Rate, M/s 0.205 0.366 4.31e-5 0.326 0.366 3.41e-5 0.205 0.631 7.43e-5

@X@user.full_name@X@ @GMU: Initially there were equilibrium concentrations of 0.1755 M A, 0.2500 M B, and 0.1755 M C. Which change will cause the equilibrium to shift from left to right? Use the reaction below.4A → 4 B +3 C Kc = 0.663

@X@user.full_name@X@ @GMU: What is the freezing point depression when 19.32 g of Ba(NO3)2 (formula mass = 199.30 g/mol) is dissolved in 189.16 g H2O? The freezing point depression constant is 1.8600 (°C*kg)/mol. Assume any salt is completely ionic!

@X@user.full_name@X@ @GMU: Initially there were equilibrium concentrations of 0.1224 M A, 0.3333 M B, and 0.1224 M C. Which change will cause the equilibrium to shift from right to left? Use the reaction below.3A → 3 B +4 C Kc = 0.826

@X@user.full_name@X@ @GMU: The osmotic pressure of an unknown solution is 0.772 atm at 9.96 °C. Which of the solutions below is the most likely one? Assume any salt is completely ionic!

@X@user.full_name@X@ @GMU: Determine the mole fraction of cyclohexene if 9.0143 g of cyclohexene, C6H10, was mixed with 6.45 g of benzene, C6H6. MW(C6H10) = 82.145 g/mol; MW(C6H6) = 78.114 g/mol.