A current of 8A is passed through a molten aluminium oxide (Al?O?) using inert electrodes for 100mins.What is the volume of gas liberated at anode under STP?
find moles of charge used 8 C/s 100 min 60 s/min 48000 C convert C to moles 48000 C 1 mol / 96485.3 C 0.4975 mol convert to mol of Al Al+3 ions need 3 mol of e- to produce 1 mole of atoms 0.4975 mol e- 1 mol Al / 3mol e- 0.1685 mol Al 2.83 L [[Answer]] 2Al2O3 → 4Al ; + 3O2 (22.4L/mol) 0.1685mol 0.1264mol |4 to 3| round appropriately When you get a good response, please consider giving a best answerThis is the only reward we getYou may have to wait an hour to award BA.
