1 Estimate the weight of a 12 V, 100 A h lead-acid battery. Do this by calcu- lating the reactant masses participating in the overall chemical reaction. Also, assume that the mass of H,0 in the electrolyte is twice the mass of H,SO,. Neglect battery casing mass, electrode grid mass, separator mass, and current bus mass. (Note that n=2 for Pb and PbO, and n=1 for H,SO,.)

1 Estimate the weight of a 12 V, 100 A h lead-acid battery. Do this by calcu- lating the reactant masses participating in the overall chemical reaction. Also, assume that the mass of H,0 in the electrolyte is twice the mass of H,SO,. Neglect battery casing mass, electrode grid mass, separator mass, and current bus mass. (Note that n=2 for Pb and PbO, and n=1 for H,SO,.)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

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.

Question

1 Estimate the weight of a 12 V, 100 A h lead-acid battery. Do this by calcu-
lating the reactant masses participating in the overall chemical reaction.
Also, assume that the mass of H,0 in the electrolyte is twice the mass
of H,SO,. Neglect battery casing mass, electrode grid mass, separator
mass, and current bus mass. (Note that n=2 for Pb and PbO, and n=1
for H,SO,.)

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11-please see attached
The potential of electrodes Cu2+ (aq) | Cu(s) is ϕ1 = 0.337 V , and Cu2+ (aq), Cu+ (aq) | Pt is ϕ2 = 0.153 V , respectively. a) Calculate the value of ϕ0 for electrode Cu+(aq) | Cu(s). [Hint: Write half reactions for the above two electrodes, then derive the target electrode.]b) Calculate the equilibrium constant Ka0 for the reaction Cu(s) + Cu2+ (aq) = 2Cu+ (aq) at 298.15K. [Hint: Based on the reaction, design a cell with two electrodes and verify that the two half reactions will give you the target reaction. Then calculate the cell potential.]
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