mH2SO4=1.5*150*0.6=135g
m(25%H2SO4)=135*4=540g
m(60%H2SO4)=150*1.5=225g
m增=540-225=315g
V水=315*1=315ml
m(NaCl)=50*18%=9g
m(NaCl)=9/0.9%=1000g
m增=1000-50=950g
mH2SO4=1.5*150*0.6=135g
m(25%H2SO4)=135*4=540g
m(60%H2SO4)=150*1.5=225g
m增=540-225=315g
V水=315*1=315ml
m(NaCl)=50*18%=9g
m(NaCl)=9/0.9%=1000g
m增=1000-50=950g