@X@user.full_name@X@ @GMU: A compound contains only calcium and chlorine. A sample weighing 6.71 g of this compound contained 2.42 g of calcium. How many grams of chlorine would there be in another sample of this compound containing 7.59 g of calcium?

@X@user.full_name@X@ @GMU: ACS-Using the given rate data what is the correct rate law for the reaction below?NH4+ + NO2− ⇋ N2 + 2H2O  Exp o o Initial Rates, Ms-1 1 0.119 0.119 8.43 2 0.238 0.119 1.69e1 3 0.238 0.172 3.52e1

@X@user.full_name@X@ @GMU: What is the energy of photons with a frequency of 8.464e+14 s-1? Remember Planck’s constant is 6.626×10-34 J×s

@X@user.full_name@X@ @GMU: What is the standard cell voltage at 25.0oC for the reverse of the reaction below?Cr3+(aq) + Al(s) → Cr(s) + Al3+(aq) K = 3.75e39

@X@user.full_name@X@ @GMU: ACS-Determine the cell potential for the reaction below if = 0.3455M and = 0.0115M 2Al3+(aq) + 3Ni(s) → 2Al(s) + 3Ni2+(aq) E°= -1.430V

Nitric oxide, NO, is made from the oxidation of NH3 and the reaction is represented by the equation a NH3 + b O2 –> c NO + d H2O In the balanced equation, the correct coefficients for a, b, c, d are

@X@user.full_name@X@ @GMU: What is the standard cell voltage at 25.0oC for the reverse of the reaction below?3Cu2+(aq) + 2Cr(s) → 3Cu(s) + 2Cr3+(aq) K = 1.23e75

@X@user.full_name@X@ @GMU: What is the free energy change for the reaction below, if the reaction quotient, Q, at 25.0oC is equal to 5.76e-7?C2H2(g) + 2 H2(g) → C2H6(g) ΔGo = -242.202 kJ.

@X@user.full_name@X@ @GMU: What is Kp for the reaction below, if Kc = 6.20e-4 at 523.6°C?4A(s) + 3B(g) → 4C(g)

@X@user.full_name@X@ @GMU: Determine the rate of consumption of H2 if the rate for consumption of N2 is 0.400 M/s. Use the reaction below.N2(g) + 3 H2(g) → 2NH3(g)