Hi all, I'm doing this project entitled "determining the effects of Sulphation on lead-acid batteries", and what it essentially is, is the reason why these batteries lose their effectiveness after being left in a discharged state for a period of time. What happens is lead sulphate is formed from the discharge redox reactions of the lead electrodes in sulphuric acid electrolyte. This lead sulphate crystallises after awhile, and is very insoluble and a nonconductor. These crystallise around the electrodes, hence hindering the flow of electricity. For my experiment, I have a cell up and running, and I need to find a way to determine whether or not lead sulphate crystallises, and use the "Nernst Equation" to calculate the actual voltage. Can this be done by determining the concentration (by standardisation with borax) of the sulphuric acid before and after the cell activity, and say that if a decrease in concentration is observed, then this amount of sulphate ions were converted to lead sulphate? Sorry for the long explanation, but this is a really important project for me, so any help is much appreciated. Thank you, Isaac.