@X@user.full_name@X@ @GMU: When 0.5448 g of sucrose was dissolved in 102.7 mL of water, the osmotic pressure at 18.52°C was 0.3707 atm. What is the formula mass of this compound?

@X@user.full_name@X@ @GMU: What is the activation energy (in kJ/mol) for the reaction below if the rate constants are 1.080e9 M-1s-1 at -78.00°C and 2.45e9 M-1s-1 at -53.47°C?NO(g) + O3(g) → NO2(g) + O2(g)

@X@user.full_name@X@ @GMU: What is the molality of a solution made by combining 2.9209 g rubidium chloride, RbCl, with 0.2399 L of water (assume a density of 1.00 g/mL)? The molecular weight is 120.9205 g/mol.

@X@user.full_name@X@ @GMU: What is the solubility in mol/L of C2H4 at a partial pressure of 614.1 torr, if the solubility at a partial pressure of 467.5 torr is 0.002891 mol/L?

Consider the reaction.I2(s) + 5F2(g) ⇋ 2IF5(g)What is the correct expression for Kc?

@X@user.full_name@X@ @GMU: A mixture containing an initial concentration of 0.1908 M for H2 and 0.1417 M for I2 is allowed to come to equilibrium (see reaction below). What must be the equilibrium concentration of HI?H2(g) + I2(g) → 2HI(g) Kc = 48.7000

Methyl acetate, CH3COOCH3 hydrolyzes in the water according to first order kinetics. Determine half-life and the rate constant.CH3COOCH3(aq) + H2O(l) → CH3OH + CH3COOH(aq)

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

@X@user.full_name@X@ @GMU: Determine the mole fraction of benzene if 5.2414 g of benzene, C6H6, was mixed with 7.33 g of cyclopentene, C5H8. MW(C6H6) = 78.114 g/mol; MW(C5H8) = 68.119 g/mol.

Determine if the reverse reaction for the energy level diagram is endothermic or exothermic and what the ΔH for the reverse reaction is.