Electrochemistr...

How many kgs of silver would be deposited at cathode if $$0.0342 dm^3$$ of oxygen measured at NTP is liberated at the anode when silver nitrate solution is electrolyzed between platinum electrodes?(Given : Atomic masses of Ag = 108, O =16)

For the half reaction 
$$B(s)$$ $$\rightarrow$$ $$B^{2+} + 2e^-$$     $${ E }_{ 1 }^{ \circ  }=-0.44V$$
and 
$$B^{2+}$$ $$\rightarrow$$ $$B^{3+} + e^-$$         $${ E }_{ 2 }^{ \circ  }=1.3V$$
What is $${E}_{3}^{\circ}$$ for the reaction 
$$3e^- + B^{+3 }$$ $$\rightarrow $$ B(s):

How much electricity in terms of Faraday is required to produce 40.0 g of $$Al$$ from molten $$Al_2O_3$$?

Which of the following will be most easily corroded in moist air?

When $$96500$$ coulombs of electricity are passed through barium chloride solution, the amount of barium deposited will be:

When an electric current is passed through acidified water, $$112\ ml$$ of hydrogen gas at $$STP$$ collects at the cathode in $$965$$ seconds. What is the current passed, in ampere?

Which among the following cell cannot be regenerated?

Find the charge of $$48 g$$ of $${ Mg }^{ 2+ }$$ ions in coulombs.

The specific conductance of $$0.1N$$ $$KCl$$ solution at $${23}^{o}C$$ is $$0.012{ohm}^{-1}{cm}^{-1}$$. The resistance of cell containing the solution at the same temperature was found to be $$55$$ ohm. The cell constant will be:

Which metal is usefull for protection of iron by corrosion?