Question

How many moles H2SO4 would be required if 4.55 moles of the SO4 2- ionare needed?

Answer 1

H2SO4 -> H+ + HSO4-
x
-x +x +x
0 x x

HSO4- <-> H+ + SO4 2-
x x
-y +y +y
x-y x+y y

x,y concetrations
need Volume
need Kacid2 (and Ka1 if not quantitative)