A lead storage battery consists of a lead anode and a grid of lead packed with lead dioxide as the cathode. The electrolyte taken is 39% `H_(2)SO_(4)` by mass having a density of 1.294 g `mL^(-1)`. The battery holds 3.5 L of the acid. During the discharge of the battery, the density `H_(2)SO_(4)` falls from 1.294 g `mL^(-1)` to 1.139 g `mL^(-1)` which is 20% `H_(2)SO_(4)` by mass Q. The amount of charge in coulombs used up by the battery is nearlyA. 954180B. 477090C. 95418D. 47709

A lead storage battery consists of a lead anode and a grid of lead pac

1.	A lead storage battery consists of a lead anode and a grid of lead packed with lead dioxide as the cathode. The electrolyte taken is 39% `H_(2)SO_(4)` by mass having a density of 1.294 g `mL^(-1)`. The battery holds 3.5 L of the acid. During the discharge of the battery, the density `H_(2)SO_(4)` falls from 1.294 g `mL^(-1)` to 1.139 g `mL^(-1)` which is 20% `H_(2)SO_(4)` by mass Q. The amount of charge in coulombs used up by the battery is nearlyA. 954180B. 477090C. 95418D. 47709
Answer» Correct Answer - A During the discharge reaction, 4 moles of `H^(+)` ions i.e., 2 moles of `H_(2)SO_(4)` require 2F, i.e., `2xx96500` coulombs `=(2xx96500xx9.88786)/(2)=954178` coulombs

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