The passage of 0.95 A for 40 minutes deposited 0.7493 g of Cu from `CuSO_4` solution. Calculate the molar mass of Cu.

In a certain electrolysis experiment 0.561 g of Zn is deposited in one cell containing ZnSO_4 solution. Calculate the mass of Cu deposited in another cell containing CuSO_4 solution in series with ZnSO_4 cell. Molar masses of Zn and Cu are 65.4 g mol^(-1) and 63.5 g mol^(-1) respectively.

What current strength in amperes will be required to produce 2.4 g of Cu from CuSO_4 solution in 1 hour ? Molar mass of Cu = 63.5 g mol^(-1)(2.03 A)

In a certain electrolysis experiment 4.36 g of Zn are deposited in one cell containing ZnS04 solution. Calculate the mass of Al deposited in another cell containing AICI_3 solution connected in series with ZnSO_4 cell. Molarmassesof Zn and Al are 65.4 g mol^(-1) and 27 g mol^(-1) , respectively.

What is the mass of copper metal produced during thepassageof 5A current through CuSO_4 solution for 100 minutes. The molar mass of Cu is 63.5g mol^(-1) .

In an experiment, 18.04 g of mannitol were dissolved in 100 g of water. The vapour pressure of water was lowered by 0.309 mm Hg from 17.535 mm Hg. Calculate the molar mass of mannitol.

1.02 g of urea when dissolved in 98.5 g of certain solvent decreases its freezing point by 0.211K. 1.609 g of unknown compound when dissolved in 86 g of the same solvent depresses the freezing point by 0.34 K. Calculate the molar mass of the unknown compound.(molar mass of urea = 60 g/mol )