What is the equivalent weight of hydrogen? How many electrons are involved in one equivalent of oxidation-reduction? How many moles of hydrogen ions are involved in one equivalent of an acid-base reaction? .What are some of the errors inherent in this experiment? s it possible to have non-integral values for the valence (or oxidation state) What would be the effect on this experiment if a thin film of MgO were present on the surface of the Mg ribbon?Would this give a higher or lower result? Why is the vapor pressure of water important to this experiment? What is meant by the term "dry gas"?3T Why is the height of the water (Ah) used in this experiment? Why is Ah divided by 13.6? What would be the equivalent weight of calcium? What would be the equivalent weight of aluminum?