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103 solutions

Galvanic Cell

Q. Which of the following statements regarding a concentration cell is false? Group of answer choices The two half-reactions involve the exact same species. When the concentrations are equal, the cell potential increases. Electrical work is done solely by the difference in the concentration of the components. Electrons flow from the less concentrated electrode to the more concentrated electrode. It is a voltaic cell under nonstandard conditions.

Solved • Dec 6, 2019

Galvanic Cell

Q. Consider an electrochemical cell based on the reaction: 2H+ (aq) + Sn (s) → Sn2+ (aq) + H2 (g) Which of the following actions would not change the measured cell potential? lowering the pH in the cathode compartment addition of more tin metal to the anode compartment increasing the tin (II) ion concentration in the anode compartment increasing the pressure of hydrogen gas in the cathode compartment Any of the above will change the measured cell potential.

Solved • Dec 4, 2019

Galvanic Cell

Q. What additions must you make to the cell for it to generate a standard emf?Check all that apply. We should add enough salt containing A2+ into the glass containing the electrode A(s) to produce a 1 M A2+ solution.. We should apply the initial emf to the electrodes. We should add enough salt containing B2+ into the glass containing the electrode B(s) to produce a 1 M B2+ solution.

Solved • Dec 4, 2019

Galvanic Cell

Q. What additions must you make to the cell for it to generate a standard emf?Check all that apply. We should add enough salt containing A2+ into the glass containing the electrode B(s) to produce a 1 M A2+ solution. We should add the salt bridge. We should add enough salt containing B2+ into the glass containing the electrode A(s) to produce a 1 M B2+ solution. We should add enough salt containing A2+ into the glass containing the electrode A(s) to produce a 1 M A2+ solution..

Solved • Dec 4, 2019

Galvanic Cell

Q. Calculate the standard potential for the following galvanic cell: Zn(s) | Zn2+(aq) || Ag+(aq) | Ag(s) which has the overall balanced equation: Zn(s)+2Ag+(aq)→Zn2+(aq)+2Ag(s) Express your answer to three significant figures and include the appropriate units.

Solved • Dec 4, 2019

Galvanic Cell

Q. how do you increase the voltage of an anode?

Solved • Dec 4, 2019

Galvanic Cell

Q. How many electrons are transferred in the following reaction? (The reaction is unbalanced.) Mg(s) + Cr^3+(aq) → Cr(s) + Mg^2+(aq) a) 6 b) 2 c) 3 d) 4 e) 1

Solved • Dec 2, 2019