Part A If a water electrolysis cell operates at a current of 7.9 A, how long will it take to generate 27.0L of hydrogen gas at a pressure of 23.0 atm and a temperature of 24 C? R0.08206 Latm mor K t6.78 hr Submit Previoun Answer Reauest Answet

Consider a galvanic cell for which the anode reaction isPb(s) → Pb+2 (0.010 M) + 2e- , E= -0.1263 VAnd the cathode reaction isVO2+ (0.10 M) + 2H+ (0.10 M) + e- → V3+ (1.0×10-5 M) + H2O (l) , E =?The measured cell potential is 0.640 V.a) Calculate the E cell for the cathode.b) Calculate the equilibrium constant for the overall reaction. c)Calculate ΔG for this reaction in kJ d) Determine the pH of this cell

plea,se helpp

A certain half-reaction has a standard reduction potential E=+0.21 V. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 1.30 V of electrical power. The cell will operate under standard conditions. l Data Note for advanced students: assume the engineer requires this half-reaction to happen at t Half-Reaction E° (V) Ag+ (aq) + e + Ag (s) A13+ (aq) + 3e - Al (s) Au+ (aq) + e - Au (s) Au3+ (aq) + 3e - Au (s) 0.7996 -1.676 Is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have? O yes, there is a minimum. E = Ov 1.692 1.498 If so, check the "yes" box and calculate the minimum. Round your answer to 2 decimal places. If there is no lower limit, check the "no" box. Ba2+ (aq) + 2e- - Ba (s) -2.912 O no minimum Br2 (1) + 2e - 2Br (aq) 1.066 Ca2+ (aq) + 2e-- Ca (s) -2.868 Cl2 (g) + 2e - 2CI (aq) Co2+ (aq) + 2e-- Co (s) Co3+ (aq) + e - Co2+ (aq) Cr2+ (aq) + 2e → Cr (s) Cr3+ (aq) + 3e +…