stehiometrija

nolenk's picture

 koliko ima atoma vodonika u 2 dm3 vode na ceteri stepena?

milicaradenkovic's picture

ro(vode)=1 g/cm3

m(vode)=ro*V=2000*1=2000 g

n(vode)=m(vode)/Mr=2000/18=111.11 mol

n(H)=2*n(vode)=2*111.11=222.22 mol

N(H)=n(H)*Na=6*10(23)*222.22=1.33*10(26)