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 nearly

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 nearly
Answer» 954180 477090 95418 47709 Solution :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