Question

calculate the mass of gold plated out during the electrolysis of an aq soln of gold (III) sulfate with a .150 A current for 52 hours. calculate the moles and volume of dry oxygen, measured at STP, that would be produced at the anode. calculate the time that the electrolysis must occur to produce 5.0L of oxygen collected over water at 32.0 C and 740.0 torr. the vapor pressure of water at 32.0 C is 35.7 torr.
I already found the answer to the first part (19.1 g Au), but I'm unsure of how to proceed. answers are .0727 mol, 1.63L, 132hr. please show work clearly, thanks.

Answer 1