Consider a fuel cell that works by reacting 7.2 g of liquid methanol with oxygen to form liquid water and CO2(g) at constant pressure. Compute the maximum amount of electrical work that can be performed by the fuel cell under standard conditions at 25 C. Express your answer as a positive number. ______________ kj

Q: 3. Balance each half-reaction for each of the following oxidizing agents. a. MnO, → Mn2 (under…

A:

Q: How many grams of cobalt metal will be deposited from a solution that contains Co2+ ions if a…

A: Ans is 0.546g

Q: How many seconds are required to deposit  0.207 grams of iron metal from a solution that contains…

A: According to Farady's law of electrolysis we can write m =I×t×MF×νwhereI = currentt = timeM = atomic…

Q: 10.a. What is the capacity of a battery that was discharged at 75 A for 5.95 hr before reaching the…

A: These questions can be solved directly as:

Q: How many seconds are required to deposit 0.167 grams of cadmium metal from a solution that contains…

A:

Q: For the given reaction in a voltaic cell, calculate the free energy, AG°, for metal electrodes (M)…

A:

Q: The value of E°cell for a particular electrochemical cell is +1.44 V.  This is a/an ________________…

A: The value of E°cell for a particular electrochemical cell is +1.44 V. This is a/an ________________…

Q: A voltaic cell is constructed in which the following cell reaction occurs. The half-cell…

A:

Q: Consider the voltaic cell: Zn(s) + Ca2* (aq) → Zn2*(aq) + Cd(s). (E'cell = 0.36V) %3D operating at…

A:

Q: Part A Metal plating is done by passing current through a metal solution. For example, an item can…

A: Given,  Current (C) = 8.60A Time (t) = 14.0 min Mass of gold Au(w) = ?

Q: Voltmeter Switch KNO, Salt Bridge Sn 1.0 M Cu(NO,)2 1.0 M Sn(NO,2 2) The voltaic cell pictured above…

A: The voltaic cell or electrochemical cell is a device in which electrical energy is produced from…

Q: species oxidizing power Ca (ag) choose one Ni (ag) choose one V Mg (ag) choose one AI (ag) choose…

A: Electrochemical series we can identify which is higher oxidising agent which is lower  Reducing…

Q: 4. What is the purpose of a salt bridge in a galvanic cell? a. to balance charge b. to absorb…

A: Salt bridge is a bridge between cathode and anode. It contains electrolytes like KNO3, KCl, etc. It…

Q: L 1 Determine Eº for a galvanic (voltaic) cell if AG° = -3.2 kJ/mol and n = 3. (F = 96,500…

A:

Q: A voltaic cell is constructed in which the following cell reaction occurs. The half-cell…

A: voltaic cell: It contains anode and cathode ,compartment connected by salt bridge. In voltaic cell…

Q: following cell reaction occurs. The half-cell compartments are connected by a salt bridge. I2(s) +…

A:

Q: A voltaic cell is constructed from a standard Ni2+|Ni half cell (E°red = -0.250V) and a standard…

A:

Q: A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 2+ MnO₂ (s)…

A: Given,  MnO2(s) + 4H+(aq) + 2Cr2+(aq) -----> Mn2+(aq) + 2H2O(l) + 2Cr3+(aq)  [H+] = 2.59 M…

Q: If you let this battery run for 2 hours at 1.3 amps, what will be the new E for this battery?

A: To find out the EMF of the cell when the battery is run for 2 hours at 1.3 A.

Q: 14 Question (1 point) A battery can provide a current of 5.00 A at 2.40 V for 2.00 hr. How much…

A: The produced energy can be calculated as P = IV and E = Pt

Q: Calculate the AE°for the following reaction. Show your work. See Table 3 in Appendix A for the…

A: The cell reaction given is, => Fe (s) + Cl2 (g) -------> Fe2+ (aq) + 2 Cl- (aq)

Q: In an electrolytic cell, 100.0 g of Zn(s) was plated in 2.50 h. The current that would have to be…

A:

Q: Many of the metals that appear in the structure of boats are listed in the table above. Which two…

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Q: 34. a. b. C. d. e. Calculate the standard emf (E°rxn value) for the reaction shown below using the…

A:

Q: Can you please answer question 1a through 1k? Thanks alot.   Nernst Equation:  E = E° – (RT/nF) ln…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: For the following cell, write out both half reactions and identify the species that are being…

A:

Q: Calculate the [H *] for the hydrogen half-cell of the following voltaic cell if the observed cell…

A: Here, Ecell°=1.95V. The cell is written as; Mg|Mg2+(1.00M)||H+,H2(1.00atm)|Pt

Q: 2. A voltaic cell is set up at 25°C with the half cells: Al3*(0.0010 M)|Al and Ni2+(0.50 M)|Ni. a.…

A: "Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: A current of 5.90 A is passed through a Sn(NO3)2 solution. How long, in hours, would this current…

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Q: Cu and Cu+2 mixed with Co and Co+2 a.  determine the oxidation reaction b. determine the reduction…

A: To check the reduction half reaction and oxidation half reaction, we would check the Standard…

Q: How many grams of  aluminum metal will be deposited from a solution that contains  Al^3+ ions if a…

A: Current = 0.826ampere Time = 55.5 minute = 55.5×60 second (1 minute = 60 second)

Q: Calculate the voltage, in V, of the following concentration cell at 25°C. Mg(s) | Mg2* (0.02 M) ||…

A:

Q: Also note: for each cell, the number n of electrons transferred per redox reaction is 1. calculated…

A: This question is from chapter Electrochemistry. We will use the formula  ∆G°= -nFE°  and  E° = (RT…

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.