Given that Eo = -0.34 V for the reduction of Tl+ to Tl, find the voltage developed by a cell consisting of Tl metal dipping in an aqueous solution that is 0.32 M in Tl+, connected by a porous bridge to a 0.69 M aqueous solution of HCl in contact with a Pt electrode over which H2 gas is bubbling at p = 0.84 bar.