Electrochemical cells (2) (AHL) questions

1. Electricity was passed through two different electrolytic cells connected in series. One of the cells contained dilute sulfuric acid solution and 250 cm3 of oxygen (measured at STP) was evolved at the positive electrode (anode). The second cell contained molten lead bromide. (I mole of gas occupies 22.7 dm3 at STP).(a) Deduce the volume of hydrogen that was released (measured at STP) at the negative electrode (cathode)...

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