Chemistry Chemistry Practice Problems Solutions Library

Faraday's Constant Solutions Library

Access 49 Faraday's Constant video and text solutions to help you complete your homework. Need to revisit the concept? Watch our Faraday's Constant learn videos.

Browse Solutions

49 solutions

Faraday's Constant

Q. A vanadium electrode is oxidized electrically. If the mass of the electrode decreases by 114 mg during the passage of 650 coulombs, what is the oxi...

Solved • Apr 15, 2020

Faraday's Constant

Q. For the following battery: Cd(s) | CdCl2(aq) || Cl-(aq) | Cl2(l) | C(s)A) Write the reduction half reaction occuring at the C(s) electrode. (Includ...

Solved • Apr 13, 2020

Faraday's Constant

Q. A student devises an electrochemical cell with the following cell notation:Cr (s) | Cr2+ (aq, 0.02 M) | | Co2+ (aq, 0.9 M) | Co (s)The student moni...

Solved • Mar 16, 2020

Faraday's Constant

Q. The molar mass of a unknown metal (M) is 50.9 g/mol and it forms a chloride of unknown composition (MClx). Electrolysis of a sample of this molten ...

Solved • Mar 16, 2020

Faraday's Constant

Q. When a solution containing M(NO3)2 of an unknown metal M is electrolyzed, it takes 74.1 s for a current of 2.00 A to plate out 0.0737 g of the meta...

Solved • Dec 16, 2019

Faraday's Constant

Q. A current of 3.07 A is passed through a Pb(NO3)2 solution. How long (in hours) would this current have to be applied to plate out 7.10 g of lead?

Solved • Aug 6, 2019

Faraday's Constant

Q. Gallium is produced by the electrolysis of a solution obtained by dissolving gallium oxide in concentrated NaOH(aq). Calculate the amount of Ga(s) ...

Solved • Aug 6, 2019

Faraday's Constant

Q. Calculate the number of kilowatt-hours of electricity required to produce 1.0 x 103 kg (1 metric ton) of aluminum by electrolysis of Al3+ if the ap...

Solved • Jan 3, 2019

Faraday's Constant

Q. Three electrolytic cells are connected in a series. The electrolytes in the cells are aqueous copper(II) sulfate, gold(III) sulfate, and silver nit...

Solved • Jan 3, 2019

Faraday's Constant

Q. A single Hall–Heroult cell (as shown in Figure below ) produces about 1 ton of aluminum in 24 h. What current must be used to accomplish this?

Solved • Dec 4, 2018

Faraday's Constant

Q. The electrolysis of BiO+ produces pure bismuth. How long would it take to produce 10.0 g Bi by the electrolysis of a BiO+ solution using a current ...

Solved • Dec 4, 2018

Faraday's Constant

Q. Magnesium bars are connected electrically to underground iron pipes to serve as sacrificial anodes.(b) A 12-kg Mg bar is attached to an iron pipe, ...

Solved • Nov 29, 2018

Faraday's Constant

Q. The overall cell reaction occurring in an alkaline battery isZn(s) + MnO2(s) + H2O(l) ⟶ ZnO(s) + Mn(OH)2(s)(b) If 4.50 g of zinc is oxidized, how m...

Solved • Nov 29, 2018

Faraday's Constant

Q. The MnO2 used in alkaline batteries can be produced by an electrochemical process of which one half-reaction isMn2+(aq) + 2H2O(l) ⟶ MnO2(s) + 4H+(a...

Solved • Nov 29, 2018

Faraday's Constant

Q. A current of 4.02 A is passed through a Ni(NO3)2 solution. How long (in hours) would this current have to be applied to plate out 6.20 g of nickel? 

Solved • Jun 26, 2018

Faraday's Constant

Q. Oxygen Supply in Submarines Nuclear submarines can stay under water nearly indefinitely because they can produce their own by the electrolysis of w...

Solved • Jun 19, 2018

Faraday's Constant

Q. For the following battery: Cd(s) | CdCl 2(aq) || Cl -(aq) | Cl2(l) | C(s)a) Write the reduction half reaction occuring at the C(s) electrode. (Incl...

Solved • Feb 14, 2018

Faraday's Constant

Q. About how many grams of Sn+2(aq) are formed when 2 A is run through the cell below for 3 hours?Sn+4(aq) I Sn+2(aq) II Pb2+(aq) I Pb(s)1) about 10 g...

Solved • Apr 12, 2017

Faraday's Constant

Q. How many grams of Cu metal (63.55 g/mol) will be plated out of a Cu(NO3 )2 solution by passing a current of 3.00 amperes for 11 minutes? (1 Faraday...

Solved • Jan 27, 2017

Faraday's Constant

Q. A current of 0.5 amp flows through an electrochemical cell that evolves Cl 2 gas by the oxidation of Cl1-. What number of moles of Cl 2 gas are gen...

Solved • Aug 29, 2016

Faraday's Constant

Q. Titanium metal is obtained from the reduction of TiCl4. How many hours would be required to produce 100 g of titanium metal using 2 A of current at...

Solved • Aug 15, 2016

Faraday's Constant

Q. If the following half-reactions are used in an electrolytic cell:Li +(aq) +  e−  →  Li(s)          E  0 = − 3.04Mg 2+(aq) + 2e−  →  Mg(s)   E 0 = −...

Solved • Aug 9, 2016

Faraday's Constant

Q. How many minutes will be required to deposit 1.00 g of chromium metal from an aqueous CrO42- solution using a current of 6.00 amperes?(A) 186 min(B...

Solved • May 10, 2016

Faraday's Constant

Q. A current of 5.00 A is passed through an aqueous solution of chromium (III) nitrate for 30.0 min. How many grams of chromium metal will be deposite...

Solved • Apr 26, 2016

Faraday's Constant

Q. A vanadium electrode is oxidized electrically. If the mass of the electrode decreases by 114 mg during the passage of 650 coulombs, what is the oxi...

Solved • Apr 26, 2016

Faraday's Constant

Q. A 215 mL sample of a 0.500 M NaCl solution with an initial pH of 7.00 is subjected to electrolysis. After 15.0 minutes, a 10.0 mL portion (or aliqu...

Solved • Apr 8, 2016

Faraday's Constant

Q. A current of 11.3 A is applied to 1.25 L of a solution of 0.552 M HBr converting some of the H+ to H2(g), which bubbles out of solution. What is th...

Solved • Apr 8, 2016

Faraday's Constant

Q. A 0.0251 L sample of a solution of Cu + requires 0.0322 L of 0.129 M KMnO4 solution to reach the equivalence point. The products of the reaction ar...

Solved • Apr 8, 2016

Faraday's Constant

Q. The molar mass of a metal (M) is 50.9 g/mol; it forms a chloride of unknown composition. Electrolysis of a sample of the molten chloride with a cur...

Solved • Apr 8, 2016

Faraday's Constant

Q. A rechargeable battery is constructed based on a concentration cell constructed of two Ag/Ag+ half-cells. The volume of each half-cell is 2.0 L and...

Solved • Apr 8, 2016

Faraday's Constant

Q. A rechargeable battery is constructed based on a concentration cell constructed of two Ag/Ag+ half-cells. The volume of each half-cell is 2.0 L and...

Solved • Apr 8, 2016

Faraday's Constant

Q. A battery relies on the oxidation of magnesium and the reduction of Cu 2+. The initial concentrations of Mg2+ and Cu2+ are 1.0 x 10–4 M and 1.5 M, ...

Solved • Apr 8, 2016

Faraday's Constant

Q. A battery relies on the oxidation of magnesium and the reduction of Cu 2+. The initial concentrations of Mg2+ and Cu2+ are 1.0 x 10–4 M and 1.5 M, ...

Solved • Apr 8, 2016

Faraday's Constant

Q. Determine if HNO3 can dissolve each metal sample. If it can, write a balanced chemical reaction showing how the metal dissolves in HNO3 and determi...

Solved • Apr 8, 2016

Faraday's Constant

Q. What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt by a current of 25 A?

Solved • Apr 8, 2016

Faraday's Constant

Q. A major source of sodium metal is the electrolysis of molten sodium chloride. What magnitude of current produces 1.0 kg of sodium metal in 1 hour?

Solved • Apr 8, 2016

Faraday's Constant

Q. Silver can be electroplated at the cathode of an electrolysis cell by the half-reaction:Ag+ (aq) + e– → Ag (s)What mass of silver would plate onto ...

Solved • Apr 8, 2016

Faraday's Constant

Q. Copper can be electroplated at the cathode of an electrolysis cell by the half-reaction:Cu2+(aq) + 2 e– → Cu(s)How much time would it take for 325 ...

Solved • Apr 8, 2016

Faraday's Constant

Q. What mass of lead sulfate is formed in a lead-acid storage battery when 1.00 g of Pb undergoes oxidation?

Solved • Apr 8, 2016

Faraday's Constant

Q. Determine the optimum mass ratio of Zn to MnO 2 in an alkaline battery.

Solved • Apr 8, 2016

Faraday's Constant

Q. If each of these ions were reduced to metal with one coulomb, which would yield the greatest mass?A. Cu2+B. Ag+C. Hg2+D. Cu+

Solved • Mar 16, 2016

Faraday's Constant

Q. A given amount of electric charge deposits 2.159 g of silver from an Ag + solution. What mass of copper from a Cu2+ solution will be deposited by t...

Solved • Mar 16, 2016

Faraday's Constant

Q. The following half-reactions combine to make an electrolytic cell: K+ (aq) + e- → K (s)                                       E° = −2.93 Li+ (aq)...

Solved • Mar 9, 2016

Faraday's Constant

Q. If the following half-reactions are used in an electrolytic cell:             Li+(aq) + e − → Li(s)                E° = −3.04             Mg2+(aq...

Solved • Mar 8, 2016

Faraday's Constant

Q. Amps are equivalent to which unit? A.  Volts B.  Moles of e− C.  Coulombs D.  Volts / second E.  Coulombs / second  

Solved • Mar 8, 2016

Faraday's Constant

Q. How many seconds will be required to deposit 6.23 g of Ag from a solution that contains Ag+ ions if a current of 0.35 A is used? a. 1.7 x 106 b. ...

Solved • Feb 23, 2016

Faraday's Constant

Q. Electric current, or flow of electrons, is measured in Amperes (A). One Ampere is the delivery of one coulomb (C) of charge per second. What mass o...

Solved • Feb 21, 2016

Faraday's Constant

Q. A solution of Mn+5 is used to plate out Mn in an electrochemical cell. If a total of 3.70 g of Mn is plated out in a total time of 1 seconds, what ...

Solved • Feb 3, 2016

Faraday's Constant

Q. Gold can be plated out of a solution containing Au 3+ based on the following half reaction: Au 3+ (aq) + 3 e -      →       Au (s)   What mass o...

Solved • Feb 3, 2016