Question: how many moles of electrons are in a coulomb?
Answer: Converting coulombs to moles of electrons, moles of electrons = coulombs / F = 6.673 x 102 / 96487 = 6.916 x 10-3 mol. from which, one mole of H2 formed requires two moles of electrons. (725.1 / 760.0) x 101.3 kPa = 96.65 kPa.