A 0.20 M KOH solution is electrolysed for 1.5h using a current of 8.00A . The number of moles of `O_(2)` produced at anode is

A 0.200M KOH solutions is electrolysed for 1.5 h using a current of 8.00 A. How many moles O_2 were produced at the anode?

A solution of MgSO_(4) is electrolysed for 20 min with a current of 1.5A. What mass of magnesium is deposited at the cathode?

Calculate : the number of moles of O_(2) which contain 8.00 g of O_(2) .

50mL of 0.1M CuSO_(4) solution is electrolysed with a current of 0.965A for a period of 200sec. The reactions at electrodes are: Cathode: Cu^(2+) +2e^(-) rarr Cu(s) Anode: 2H_(2)O rarr O_(2) +4H^(+) +4e . Assuming no change in volume during electrolysis, calculate the molar concentration of Cu^(2+),H^(+) and SO_(4)^(2-) at the end of electrolysis.

50mL of 0.1M CuSO_(4) solution is electrolysed with a current of 0.965A for a period of 200sec. The reactions at electrodes are: Cathode: Cu^(2+) +2e^(-) rarr Cu(s) Anode: 2H_(2)O rarr O_(2) +4H^(+) +4e . Assuming no change in volume during electrolysis, calculate the molar concentration of Cu^(2+),H^(+) and SO_(4)^(2-) at the end of electrolysis.

50mL of 0.1M CuSO_(4) solution is electrolysed with a current of 0.965A for a period of 200sec. The reactions at electrodes are: Cathode: Cu^(2+) +2e^(-) rarr Cu(s) Anode: 2H_(2)O rarr O_(2) +4H^(+) +4e . Assuming no change in volume during electrolysis, calculate the molar concentration of Cu^(2+),H^(+) and SO_(4)^(2-) at the end of electrolysis.

500 mL 4 M of NaCl solution is electrolysed liberating Cl_(2)(g) at an electrode. Calculate (1) the total number of moles of Cl_(2)

One litre of 1M aqueous NaCl solution is electrolysed by using 20 amp current (50%efficiency) for 96.5 seconds.The pH of solution after the electrolysis will be