Give the number of diprotic acids from the following oxyacids.
`H_(3)PO_(4),H_(2)N_(2)O_(2),H_(3)PO_(2),H_(3)PO_(3),H_(2)S_(2)O_(7),H_(4)P_(2)O_(5),H_(4)P_(2)O_(7)`

Complete and balanced the following reaction. Na_(2)HPO_(4) +(X)/(H_(2)CO_(3)) to (Y)/(NaHO_(3)) +NaH_(2)PO_(4)

Hydrogen peroxide can be prepared by successive reaction: 2NH_(4)HSO_(4) rarr H_(2)+(NH_(4))_(2)S_(2)O_(8) (NH_(4))_(2)S_(2)O_(8)+2H_(2)O rarr 2NH_(4)HSO_(4)+H_(2)O_(2) The first reaction is an electrolytic reaction the second is steam distillation. what amount ofcurrent would have to be used in first reaction to produce enough intermediate to yield 100g pure H_(2)O_(2) per hour ? Assume 50% anode current efficiency.

Give the number of electron in the species H_(2)^(+) H_(2) and O_(2 )^(+)