The number of moles of `Zn^(2+)` ions deposited when a current of `1.5A` is passed for 4 hours through a molten solution of a zince salt. `(` Assume current efficiency to be `90%)`

The number of moles of Zn^(2+) ions deposited when a current of 1.5A is passed for 4 hours through a molten solution of a zinc salt. ( Assume current efficiency to be 90%)

How many moles of electrons are passed when 0.8 ampere current is passed for 1 hour through molten CaCl_2 ?

How many moles of electrons are passed when 0.8 ampere current is passed for 1 hour through molten CaCl_2 ?

The number of moles of electrons passed when current of 2 A is passed through an solution of electrolyte for 20 minutes is ___________.

The number of moles of electrons passed when current of 2 A is passed through an solution of electrolyte for 20 minutes is ___________.

0.169 gram of copper is deposited on the cathode by a current of 32 milliamperes passing for 5 hours through a solution of copper sulphate. Determing the current efficiency. [ Atomic weight of Cu=63.6]

0.169 gram of copper is deposited on the cathode by a current of 32 milliamperes passing for 5 hours through a solution of copper sulphate. Determing the current efficiency. [ Atomic weight of Cu=63.6]

Find out the oxidation state of tin in its salt, when 11.0 g of deposited when a current of 1.0 A is passed for 5 hours through molten salt. (Given atomic weight of tin = 119)

A current of 2A was passed for 1.5 hours through a solution of CuSO_(4) when 1.6g of copper was deposited. Calculate percentage current efficiency.