Răspuns :
Cm=n/Vs===> n=Cm*Vs=0,2*50=10 mmoli=0.01 moli
M H2SO4=98 g/mol===> mH2SO4=M*n=9,8 g
M H2SO4=98 g/mol===> mH2SO4=M*n=9,8 g
50mL=0,05mL
Cm=n/Vs
0,2=n/0,05
n=0,05x0,2=10/1000=0,01 moli