0.2 Faradays of electricity were passed through solutions of sulphuric acid. Calculate the volume of hydrogen evolved at s.t.p in sulphuric acid.

Answer 1

1 Faraday is = 96485.3365 coulombs

number molecules H2= 1/2 moles electrons
= 1/2 * .2* 96485/1.6E-19

make sense?

Two electrons per molecule H2 evolved.

Now number of moles= molecules/avagnumber

volume= nRT/P