Question: (a) Write the half-reaction that occurs at a hydrogen electrode in acidic aqueous solution when it serves as the anode of a voltaic cell. (b)

(a) Write the half-reaction that occurs at a hydrogen electrode in acidic aqueous solution when it serves as the anode of a voltaic cell.
(b) The platinum electrode in a standard hydrogen electrode is specially prepared to have a large surface area. Why is this important?
(c) Sketch a standard hydrogen electrode.

Step by Step Solution

★★★★★

3.41 Rating (157 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a H 2 g 2H aq 2e b The platinum electrode se... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

876-E-C-E-E-C (1158).docx

120 KBs Word File

Students Have Also Explored These Related Chemical Engineering Questions!

Acetone reacts with iodine in acidic aqueous solution to give monoiodoacetone. A possible mechanism for this reaction is Write the rate law that you derive from this mechanism.

A platinum electrode is immersed into an aqueous solution of 1M NaCl (pH=7) that is saturated with N2(g) at S.T.P. (i.e., 25C, 1 atm). The potential of the platinum electrode is measured as a...

Hydrogen peroxide in aqueous solution decomposes by a first-order reaction to water and oxygen. The rate constant for this decomposition is 7.40 104/s. What quantity of heat energy is initially...

Consider the cell shown in Figure 18.3. One half-cell consists of silver metal in a silver nitrate solution, and the other half-cell has a piece of copper metal immersed in a copper(II) nitrate...

Help with these questions Experiment 14. Electrochemical Cell and Redox Reaction.docx Experiment 14. Voltaic Cell and Redox Reaction Student name (Print):_______________________ I. Objectives (1)...

1. Sketch a voltaic cell for the electrochemical reaction below. For each half-reaction, indicate at which electrode it occurs. Label the anode and cathode. Show the direction of electron flow. Show...

answers given -> show the work Voltaic cells (Galvanic cells) NOTE: The answers to EMF calculations are VERY sensitive to the values of the reduction potentials used. Please use the ones in the CHEM...

the skills development exercises questions as well please i really dont get this ChemActivity 51 The Call Voltage 257 Information Table 1. Measured voltages for some galvanic cells using standard...

chem 2 lab! Experiment \#11 Voltaic Cells: A Micro-scale Electrochemistry Experiment Post-laboratory Assignmeat (Due next week in lieu of lab test.) Give the balanced, overall redox equation between...

But you know that electrons can also flow through wires. So if we pick the same two reactants and place them in separate beakers with a wire connecting the two solutions, will electrons spontaneously...

Suppose Ms. Phan still faces the exams in economics and in accounting, and she still plans to spend a total of 5 hours studying for the two exams. However, she revises her expectations about the...

DO you think it is fair to base the bonus paid to BMO's CEO on the four indexes comprising the firms balance score card.

Major provisions of the Financial Services Modernization Act of 1 9 9 9 include which of the following? Multiple Choice Preventing bank holding companies from opening or merging with investment...

10. Suppose that in Canada, investment is $160 billion, saving is $140 billion, government expenditure on goods and services is $150 billion, exports are $200 billion, and imports are $250 billion....

An air-conditioning system requires airflow at the main supply duct at a rate of 180 m3/min the average velocity of air in the circular duct is not to exceed 10 m/s to avoid excessive vibration and...

Consider an evacuated rigid bottle of volume V that is surrounded by the atmosphere at pressure P0 and temperature T0. A valve at the neck of the bottle is now opened and the atmospheric air is...

An adiabatic air compressor is to be powered by a direct-coupled adiabatic steam turbine that is also driving a generator. Steam enters the turbine at 12.5 MPa and 500°C at a rate of 25 kg/s and...

Consider the following two mutually exclusive alternatives for reclaiming a deteriorating inner-city neighborhood (one of them must be chosen). Notice that the IRR for both alternatives is 27.20% a....

Waste Industries is evaluating a $55,500 project with the following cash flows. Years Cash Flows 1 $ 9,120 2 20,200 3 26,600 4 16,300 5 26,300 The coefficient of variation for the project is .475....

Loan Amortization Problem Type your full name in the following order First Middle Last Number of letters in full name = Now assume that your annual salary = number of letters in your full name x...