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The E°cell = 0.135 V for the reaction 3I2(s) + 5Cr2O7^-2 (aq) + 34H^+ (aq) =...
Half-reaction Cr3+ (aq) + 3e- → Cr(s) Fe2+ (aq) + 2e- → Fe (s) Fe3+ (aq) + e- + Fe2+ (s) Sn4+ (aq) + 2e- + Sn2+ (aq) E° (V) -0.74 -0.440 +0.771 +0.154 3Sn** (aq) +2Cr(s) → 2Cr** (aq) +3Sn²+ (aq) 3. What is the cell potential, Ecell, for the reaction above if [Sn] = 1.00 M, [Cr3+1 = 0.0200 M and [Sn2+] = 0.0100 M?
A voltaic cell uses the following reaction: 2Al(s) + 3I2(s) → 2Al3+(aq) + 6I-(aq) a) Calculate the cell potential (ε°cell) under standard conditions. b) Calculate the cell potential (E) when [Al3+] = 0.015M and [I-] = 0.025M.
The standard emf for the cell using the overall cell reaction below is +2.20 V: 2Al(s) + 3I2(s) → 2AI3+(aq) + 6I-(aq) The emf generated by the cell when [AI3+] = 4.0 × 10-3 M and [I-] = 0.015 M is ________ V. The standard emf for the cell using the overall cell reaction below is +2.20 V: 2Al(s) + 3I2(s) 2AI3+(aq) + 6I-(aq) The emf generated by the cell when [AI3+] = 4.0 × 10-3 M and [I-] =...
For the reaction IO3–(aq) + 5I–(aq) + 6H+(aq) → 3I2(aq) + 3H2O(l) the rate of disappearance of I–(aq) at a particular time and concentration is 2.6 × 10–3 mol/(L · s). What is the rate of appearance of I2(aq)? a. 4.3 × 10–3 mol/(L • s) b. 7.8 × 10–3 mol/(L • s) c. –1.6 × 10–3 mol/(L • s) d. 1.6 × 10–3 mol/(L • s) e. 6.4 × 10–3 mol/(L • s)
The standard emf for the cell using the overall cell reaction below is +2.20 V: 2Al(s) + 3I2 (s) → 2Al3+ (aq) + 6I− (aq) The emf generated by the cell when [Al3+] = 5.0 ⋅ 10−3 M and [I−] = 0.010 M is ________ V. The standard emf for the cell using the overall cell reaction below is +2.20 V: (s) + (s) (aq) + (aq) The emf generated by the cell when [] = 5.0 M and []...
The standard emf for the cell using the overall cell reaction below is +2.20 V: 2Al(s) + 3I2(s) → 2AI3+(aq) + 6I-(aq) The emf generated by the cell when [AI3+] = 3.5 × 10-3 M and [I-] = 0.30 M is ________ V.
1. Consider the reaction below: 3Ag2S(s) + 8H+(aq) + 2NO3-(aq) ? 6Ag+(aq) + 3S(s) + 2NO(g) + 4H2O(l) In this reaction, which species is reduced? 2. Calculate Ecell for the following electrochemical cell which is operating under nonstandard conditions: Cr | Cr3+(0.010 M) || Ag+(0.00010 M) | Ag The relevant standard reduction potentials are: Cr3+(aq) + 3e- ? Cr(s) Eº = ?0.74 V Ag+(aq) + e- ? Ag(s) Eº = +0.80 V
Calculate AG for the reaction below if E° = -2.123 V. Also indicate if the cell is spontaneous. Zn+2+ Cl2 ----> 2Cr + Zn AG = kJ (Place only 3 digits in the answer. yes/no. Is the cell spontaneous? * Question Completion Status: A Moving to the next question prevents changes to this answer. Question 5 When the following reaction is balanced in acidic solution, how many water, H and Crare found in the balanced equation? Cr2O7-2 (aq) + HNO2...
Pb2+(aq) + 2e− ⇌ Pb(s) E° = -0.126 V 2H+(aq) + 2e− ⇌ H2(g) E° = 0.000 V E°cell (in V)= 0.126 V 2. The electrochemical cell is comprised of a Pb electrode in a 1.67 × 100 M solution of Pb2+ (aq) coupled to a Pt electrode in a solution containing H+ (aq) where the pH of the solution is 0.37 and the partial pressure of H2(g) is 0.571 atm. The temperature of the cell is held constant at...
Given the reaction Sn(s)+ 4OH-(aq)+ 2Pt2+(aq)⇌SnO2(s)+ 2H2O(l)+ 2Pt(s)for which E°cell= 2.13 V, what is the value of Ecell, in volts, when the [OH-] = 1.00x10-5M and [Pt2+] = 3.00x10-3M at 25.0 °C?