Răspuns:
Explicație:
MH2SO4= 2+32 +4 . 16=98--------> 98g/moli
10moli xmoli
H2SO4 + BaCl2= BaSO4 + 2HCl
1mol 1mol
x=10moli BaCl2
MBaCl2=137 + 2. 35,5= 208------>208 g/moli
n=m : M ; n=nr.moli ; m=masa subst. ; M =masa molara
m= n . M
m= 10moli . 208g/moli=2080 g BaCl2