A voltaic cell utilizes the following reaction and operates at298 K:3 Ce4+(aq) + Cr(s)----->3 Ce3+(aq) + Cr3+(aq)(a) What is the emf of this cell under standard conditions?(b) What is the emf of this cell when [Ce4+] = 3.0 M,[Ce3+] = 0.10 M, and [Cr3+] = 0.010 M? (c) What is theemf of the cell when [Ce4+] = 0.010 M, [Ce3+] = 2.0 M,and [Cr3+] = 1.5 M?

A voltaic cell is constructed that uses the following half-cellreactions:Cu+(aq) + e- ----->Cu(s)I2(s) + 2 e- ----->2 I-(aq)The cell is operated at 298 K with [Cu+] = 0.25 M and[I-] = 0.035 M. (a) Determine E for the cell at these concentrations.(b) Which electrode is the anode of the cell?(c) Is the answer to part (b) the same as it would be if the cellwere operated under standard conditions? (d) If [Cu+] wereequal to 0.15 M, at what concentration of I- would the cellhave zero potential?

The equilibrium constant of the reaction shown below is 2.41x10^8 at 25 degrees Celsius: 3Ag(s) + NO3-(aq) + 4H+(aq) --> 3Ag+(aq) + NO(g) + 2H2O(l) calxulte the value of Ecell for a cell utilizing this reaction

A galvanic cell is prepared according to the redox reaction shown below. A voltmeter connected to this galvanic cell under standard conditions reads 0.45 V, and AG, xn = -79 kJ/mol. If the concentration of Fe2+ is increased to 2.0 M, then Ecell will and AGrxn will be than AGxn- Fe(s) + 2H*(aq) Fe2* + H2(g) decrease, less negative O decrease, more negative O increase, more negative O increase, less negative

The cell potential of the following cell at 25°C is 0.475 V: Zn|Zn?t (1.0 M) || H* (test solution) H2 (1.0 atm)|Pt What is the pH of the test solution? The standard reduction potential for Zn+ is –0.76 V. (Enter your answer to two significant figures.) pH =

A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 2+ 2+ 2MNO, (aq) + 16H* (aq)+5Pb (s) → 2Mn²* (aq)+ 8H,0 (1) + 5PB²* (aq) Suppose the cell is prepared with 1.98 M MnO, and 2.68 M H' in one half-cell and 3.90 M Mn 2+ and 4.33 M Pb 2+ in the other. 4 Calculate the cell voltage under these conditions. Round your answer to 3 significant digits. x10