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John Schreifels @GMU: Determine the mass of KF required to produce a 0.3072 molal solution by dissolving KF in 222.3944 g of H2O. MW(KF) = 58.0967 g/mol. 

@X@user.full_name@X@ @GMU: What is the value of Kc at 25.00 °C for the reaction below if Kp is 2.5600 at this temperature?2NO(g) + Br2(g) → 2NOBr(g)

@X@user.full_name@X@ @GMU: What is the mole fraction of magnesium nitrate, Mg(NO3)2, in an aqueous solution that contains 1.7596 g of magnesium nitrate dissolved in 22.2333 grams of water? MW(Mg(NO3)2) = 148.315 g/mol.

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

@X@user.full_name@X@ @GMU: What is the solubility in g/L of Kr at a partial pressure of 268.1 torr, if the solubility at a partial pressure of 431.8 torr is 0.1328 g/L?

@X@user.full_name@X@ @GMU: What is the rate constant at 501.64°C for the reaction below if the rate constant is 1.05e-3 M-1/2s-1 at 486.00°C and the activation energy is 207.00 kJ/mol?CH3CHO(g) → CH4(g) + CO(g)

@X@user.full_name@X@ @GMU: Determine the rate of consumption of I− if the rate for formation of I2 is 0.261 M/s. Use the reaction below.IO3− + 5I− + 6H+ → 3I2 + 3H2O

@X@user.full_name@X@ @GMU: What is the boiling point when 14.59 g of LiCl (formula mass = 42.39 g/mol) is dissolved in 171.48 g H2O? The boiling point elevation constant is 0.5100 (°C*kg)/mol. Assume any salt is completely ionic!

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

@X@user.full_name@X@ @GMU: The osmotic pressure of an unknown solution is 1136.520 mm Hg at 30.22 °C. Which of the solutions below is the most likely one? Assume any salt is completely ionic!