For how Iong a current of threc amperes has lu be passed through a solution of `AgNO_3` to coat a metal surface of `80cm^2` area with 0.005mm thick layer? Density of silver is 10.6g/cc and atomic weight of Ag is 108 gm/mol.

How long a current of 3A has to be passed through a solution of AgNO_(3) , to coat a metal surface of 80 cm^(2) with 5 mum thick layer? Density of sikver = 10.8 g//cm^(3)

How long a current of 2 A has to be passed through a solution of AgNO_(3) to coat a metal surface of 80cm^(2) with 5mum thick layer? Density of water =10.8g//cm^(3)

How long a current of 3A has to be passed through a solution of silver nitrate to coat a metal surface of 80cm^(2) with a 0.005-mm- thick layer ? The density of silver is 10.5g cm^(-3) .

A current of 3 ampere has to be passed through a solution of AgNO_(3) solution to coat a metal surface of 80 cm^(2) with 0.005 mm thick layer for a duration of approximately y^(3) second what is the value of y? Density of Ag is 10.5 g//cm^(3)

Calculate the time required to coat a metal surface of 80 cm^(2) with 0.005 mm thick layer of silver (density = 10.5 g cm^(3)) with the passage of 3A current through silver nitrate solution.

A current 0.5 ampere when passed through AgNO_(3) solution for 193 sec. Deposited 0.108 g of Ag. Find the equivalent weight of Ag.

A brass plate having surface area 200 cm^2 on one side is electroplated with 0.10 mm thick silver layers on both sides using a 15 A current. Find the time taken to do the job. The specific gravity of silver is 10.5 and its atomic weight is 107.9 g mol^(-1)

A current of 1.50 A was passed through an electrolytic cell containing AgNO_3 solution with inert electrodes. The weight of silver deposited was 1.50g . How long did the current flow ? (Molar mass of Ag=108 g " mol "^(-1), 1F=96500C " mol" ^(-1) ).

A current of 5 ampere is passing through a metallic wire of cross-sectional area 4xx10^(-6) m^(2) . If the density of the charge-carriers in the wire is 5xx10^(26) m^(-3) , find the drift speed of the electrons.

Lowering in vapour pressure is determined by Ostwald and Walker dynamic methed. It is based on the prinicipal , that when air is allowed to pass through a solvent or solution, it takes up solventvapour with it to get itself saturated at that temperature I and II are weighted separately before and after passing dry air. Loss in mass of each set, gives the lowing of vapour pressure. The temperature of air, the solution and the solvent is kept constant. Dry air was passed thorough 9.24 g of solute in 108 g of water and then through pure water. The loss in mass of solution was 3.2 g and that of pure water 0.08 g . The molecular mass (g/mol) of solute is nearly : (a)50 (b)62 (c)70 (d)80