Cn = md/EgxVs
Eg = miu/nr. at. H = 98/2 = 49 g
=> md = CnxEgxVs = 0,1x49x1 = 4,9 g
din c% = mdx100/ms
=> ms = mdx100/c%
= 4,9x100/80 = 6,125 g sol. H2SO4
ro = ms/Vs
=> Vs = ms/ro = 6,125/1,732 = 3,54 cm3 sol H2SO4