Assuming complete dissociation of H2SO4 as
H2SO4 + 2H2O `->` 2H3O+ + SO42-
The number of H3O+ ions in 10ml of 0.5 N H2SO4 is
3.01 `xx` 1021``
1.5 `xx` 1021
6.02 `xx` 1021
3.01 `xx` 1022
Why is 1/2 multiplied tro find no. of moles of H2SO4?