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What would be the expected rate law for the mechanism described below?1 CH3CH2Br + AlBr3 → AlBr4- + CH3CH2+ slow 2 CH3CH2+ + C6H6 → C6H6CH2CH3+ fast 3 C6H6CH2CH3+ + AlBr4- → AlBr3 + HBr + C6H6CH2CH3 fast

John Schreifels @GMU: Which substance in the reaction mechanism below is an intermediate?(1) A + B → C + D(2) D + E → F

@X@user.full_name@X@ @GMU: What is the overall order of the elementary reaction:2*A + 3*B → C?

@X@user.full_name@X@ @GMU: When 7.856 g of aspirin was dissolved in 109.4 g of benzene, the freezing point was 276.6 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 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: Initially there were equilibrium concentrations of 0.1766 M A, 0.2500 M B, and 0.1766 M C. Which change will cause Qc to be greater than Kc? Use the reaction below.3A → 4 B +3 C Kc = 0.804

@X@user.full_name@X@ @GMU: Initially there were equilibrium concentrations of 0.1639 M A, 0.5000 M B, and 0.1639 M C. Which change will cause the equilibrium to shift from right to left? Use the reaction below.6A → 2 B +3 C Kc = 0.517

@X@user.full_name@X@ @GMU: What is the order for reactant A (first) and B from the initial concentrations and reaction rates below? [A]o [B]o Rate, M/s 0.275 0.376 5.89e-7 0.504 0.376 1.08e-6 0.275 0.631 7.64e-7

@X@user.full_name@X@ @GMU: The osmotic pressure of a 19.902 mM solution of Ba(NO3)2 is 802.229 mm Hg at 13.70 °C. How many ions per formula unit of Ba(NO3)2 must there be? The compound may not be completely ionic.

Sulfuryl Chloride, SO2Cl2 decomposes in the gas phase according to first order kinetics. Determine half-life and the rate constant.SO2Cl2(g) → SO2(g) + Cl2(g)