@X@user.full_name@X@ @GMU: How much energy in kJ is released…

@X@user.full_name@X@ @GMU: How much energy in kJ is released to form one mole of 87Rb from protons, electrons, and neutrons if the nucleus has a mass of 86.909187 amu? The masses of the proton, electron and neutron are 1.00728 amu, 0.000549 amu and 1.00867 amu, respectively.

@X@user.full_name@X@ @GMU: Hydrogen iodide decomposes at 410…

@X@user.full_name@X@ @GMU: Hydrogen iodide decomposes at 410°C according to second order kinetics (see reaction below). The half-life for this reaction was measured to be 7.04e3 s when the initial concentration of HI was 4.61e-3 M. What is the rate constant for this reaction?HI(g) → H2(g) + I2(g)