# Use the References to access important values if needed for this question An electrochemical cell consists...

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Use the References to access important values if needed for this question An electrochemical cell consists of a Pt/H(aq,1.00 M) H (8) cathode connected to a Pt/H(aq)|Hz(8) anode in which the H concentration is that of a buffer consisting of a weak acid, HA(0.117 M), mixed with its conjugate base, A (0.193 M). The measured cell voltage is Ecell -0.169 V at 25 °C, with Pt. -1.00 atm at both electrodes. Calculate the pH in the buffer solution and the K, of the weak acid. pH- Submit Answer question attempts remaining
Use the References to access important values if needed for this question. A galvanic cell Zn(s) Zn(aq) | Sn?'aq/Sn(s) is constructed using a completely immersed Zn electrode that weighs 45.7 g and a Sn electrode immersed in 494 mL of 1,00 M Sn(a) solution. A steady current of 0.0413 A is drawn from the cell as the electrons move from the Zn electrode to the Sn electrode. (a) Which reactant is the limiting reactant in this cell? Enter symbol (b) How long does it take for the cell to be completely discharged? (c) How much mass has the Sn electrode gained when the cell is completely discharged? (d) What is the concentration of the Sa (aq) when the cell is completely discharged? (Assume that the limiting reactant is 100% reacted.) M Submit Anwwer 5 question temps remaining
Use the References to access important values if needed for this question A concentration cell is constructed in which the concentrations differ in the two half-cells. The cell consists of a Pb (n. 0.770 MD Pb(s) half-cell connected to a Pb (aq, 3.10x10M) Pb(s) half-cell. Determine which half-cell will be the cathode compartment and calculate the cell voltage. The Pha concentration in the cathode compartment will be: a. 0.770 M b. 3.10x10M Ecell Submit Answer 5 question attempts remaining

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