c2/100=md2/ms2 => md2=c2*ms2/100=18*500/100=90g H2SO4
inainte de diluare, masa de acid a fost aceeasi => md1=md2 si ms2=ms1+mapa
c1/100=md1/ms1 => ms1=md1*100/c1=90*100/45=200g solutie H2SO4
mapa=ms2-ms1=500-200=300g apa
dapa=mapa/Vapa => Vapa=mapa/dapa=300g/1(g/cm³)=300cm³
Vsacid=msacid/dacid=200g/1,348(g/cm³)=148,368cm³