Recent questions in ElectroChemistry

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1 answer 117 views

What is the number of electrons that are transferred in the following reaction: MnO4- + 8H+ + 5e- → Mn2+ + 4H2O

asked Feb 13 in ElectroChemistry by KlaudiaLefle (2.2k points)

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1 answer 118 views

What is the total number of electrons transferred in the following electrochemical reaction: 2Fe3+ (aq) + Mg (s) → 2Fe2+ (aq) + Mg2+ (aq)?

asked Feb 13 in ElectroChemistry by JuanitaPiess (2.1k points)

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1 answer 126 views

What is the number of electrons transferred when zinc metal reacts with copper(II) ions in a galvanic cell? The balanced reaction is:Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s)

asked Feb 13 in ElectroChemistry by RafaelBarrow (1.7k points)

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1 answer 153 views

What is the number of electrons transferred in the electrochemical reaction between silver (Ag) and copper (Cu) in which silver ions (Ag+) get reduced to silver metal (Ag) while copper metal (Cu) is oxidized to copper ions (Cu2+)?

asked Feb 13 in ElectroChemistry by KaylaTibbett (1.9k points)

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1 answer 108 views

What is the oxidation state of sulfur in the compound SO3?

asked Feb 13 in ElectroChemistry by LeoOverby677 (2.1k points)

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1 answer 178 views

What is the oxidation state of sulfur in the compound Na2SO4?

asked Feb 13 in ElectroChemistry by NicholeBlade (2.1k points)

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1 answer 167 views

What is the oxidation state of manganese in the compound KMnO4?

asked Feb 13 in ElectroChemistry by MerriLondon (1.8k points)

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1 answer 122 views

What is the oxidation state of nitrogen in the compound HNO3?

asked Feb 13 in ElectroChemistry by MarcyVallejo (2.2k points)

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1 answer 82 views

What is the oxidation state of chlorine in the compound HClO4?

asked Feb 13 in ElectroChemistry by LynwoodLundg (1.5k points)

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1 answer 139 views

What is the oxidation state of the carbon atom in CH3OH molecule?

asked Feb 13 in ElectroChemistry by BettyWalsh4 (2.0k points)

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1 answer 169 views

What is the oxidation state of manganese in potassium permanganate (KMnO4)?

asked Feb 13 in ElectroChemistry by DanielleVanw (2.3k points)

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1 answer 139 views

What is the oxidation state of chlorine in NaClO3?

asked Feb 13 in ElectroChemistry by NovellaDegot (1.6k points)

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1 answer 149 views

What is the oxidation state of copper in CuSO4?

asked Feb 13 in ElectroChemistry by IsabellFrome (2.1k points)

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1 answer 147 views

What is the oxidation state of Chromium in Cr2O3?

asked Feb 13 in ElectroChemistry by BridgetteCul (2.3k points)

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1 answer 112 views

What is the corrosion potential of a zinc electrode in a galvanic couple with a copper electrode, given that the standard reduction potentials of the two half-reactions are +0.34V for Cu²⁺/Cu and -0.76V for Zn²⁺/Zn?

asked Feb 13 in ElectroChemistry by K29986283214 (2.0k points)

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1 answer 170 views

What is the total number of electrons transferred when a current of 2.0 A flows through a solution of CuSO4 for 15 minutes? Given that the molar mass of CuSO4 is 159.61 g/mol and the Faraday constant is 96,485 C/mol.

asked Feb 13 in ElectroChemistry by ValentinaWil (2.2k points)

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1 answer 94 views

What is the current density in an electrochemical cell with a copper electrode and a zinc electrode if the current produced by the cell is 0.5 A and the surface area of the copper electrode is 10 cm² while the surface area of the zinc electrode is 5 cm²?

asked Feb 12 in ElectroChemistry by EdwardoO6191 (2.5k points)

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1 answer 79 views

What is the current density in an electrochemical cell where a current of 5 amperes is passed through a copper electrode with a surface area of 0.1 square meters for 10 minutes? The half-cell reaction is: Cu2+ + 2 e- -> Cu.

asked Feb 12 in ElectroChemistry by Dawn49061396 (2.1k points)

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1 answer 175 views

Here's a precise problem for the student to solve:A galvanic cell is constructed with a zinc electrode and a copper electrode in two separate solutions, connected by a salt bridge. The zinc electrode has a surface area of 4 cm² and the copper electrode has a surface area of 8 cm². The concentration of zinc ion solution is 0.1 M and the copper ion solution is 0.01 M. The temperature of the solutions is 25°C. Calculate the resistance of the electrochemical cell.

asked Feb 4 in ElectroChemistry by WUWTaylor875 (1.7k points)

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1 answer 164 views

Here is a question for a chemistry student to solve in the subtopic Calculation of current density in an electrochemical cell: What is the current density (in amperes per square meter) in a zinc-copper galvanic cell, given that the mass of zinc electrode is 10 g and the rate of zinc dissolution is 0.1 g/min, the area of copper electrode is 5 cm², and the potential difference between the electrodes is 1.5 V?

asked Feb 4 in ElectroChemistry by LynwoodLundg (1.5k points)

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