An electrolysis cell was constructed similar to the one shown in Figure 18.18, except 0.1 M MgCl2(aq) was used as the electrolyte solution. Under these conditions, a clear gas was formed at one electrode and a very pale green gas was formed at the other electrode in roughly equal volumes. (a) What gases are formed at these electrodes? (b) Write balanced half-reactions for each electrode. Account for any deviation from the normally expected results.
Gases - System: energy (Temperature); intensity (pressure); composition (mole fraction) - Mole fraction is proportional to partial pressure n - χ = component component n total - Ideal gas law: PV = R nT - There are no attractive molecules in any gas system lacking significant attraction - Temperature is proportional to energy - Composition breaks down the identity of the system - The total pressure is 1.00atm