The element indium is to be obtained by electrolysis of a molten halide of the element. Passage of a current of 3.20 A for a period of 40.0 min results in formation of 3.05 g of In. what is the oxidation state of indium in the halide melt? (Atomic mass of In=114.8)

The element indium is to be obtained by electrolysis of a molten halide of the element. Passage of a current of 3.20 A for a period of 40.0 min results in formation of 3.05 g of In. What is the oxidation state of indium in the halide melt ? (At.wt of In = 114.81)

A current of 2.0 ampere is passed for 5.0 hour through a molten tin salt to deposit 22.2 g tin. What is the oxidation state of tin in salt? Atomic wt. of Sn = 118.69 g .

State and explain Faraday's law of electrolysis. 0.2964g of copper was deposited on passing a current of 0.5 ampere for 30 minutes through copper sulphate solution. What is the atomic mass of copper ?

How many grams of copper could be plated out on a serving tray by electrolysis of a solution containing copper in +2 oxidation state for a period of 8.0 h at a current of 8.46 A? What is the area of the tray, if the thickness of the copper plating is 0.00254 cm? Density of copper is 10.5 g//cm^(3) .

How many grams of silver could be plated out on a serving tray by electrolysis of a solution containing silver in +1 oxidation state for a period of 8.0 h at a current of 8.46 A ? What is the area of the tray if the thickness of the silver plating is 0.00254 cm? Density of silver is 10.5 g// cm^(3) .

A current of 5.0 A flows for 4.0 h through an electrolytic cell containing a molten slat of metal M. This result in deposition of 0.25 mol of the metal M at the cathode. The oxidation state of M in the molten salt is +x . The value of 'x' is (1 Faraday = 96000 C mol^(-1) ) 3

How many grams of silver could be plated out on a serving tray by elelctolysis of a solution containing silver in +1 oxidation state for a period of 8.0 hours at a current of 8.46 amperes? What is the area of the tray if the thickness of the silver plating is 0.0025 cm? density of silver is 10.5 g/cm^3 .