In an electrolysis of acidulated water, 4.48 L of hydrogen at STP was produced by passing a current of 2.14 A. For how many hours was the current passed ?

In the electrolysis of acidulated water, it is desired to obtain hydrogen at the rate of 1cc per second at STP conditions. What should be the current passed?

Calculate the mass of hydrogen evolved by passing a current of 0.5 ampere for 40 minutes through acidulated water.

When an electric current is passed through acidulated water, 112 ml of hydrogen gas at NTP is collected at the cathode in 965 seconds. The current passed in amperes is

In the electrolysis of acidulated water, it is desired to obtain 1.12 CC of hydrogen per second STP condition. The current to be passed is