Question

Calculeaza masa acidului clorhidric ce poate fi neutralizat de catre hidroxidul de aluminiu cu masa de 7,8g .
Ecuatia :
AlOH_{ 3} +HCl \to AlCl_{3} + H_{2} O[/tex]

Answer 1

MHCl=36.5g/mol
MAl(OH)3=27+3(16+1)=78g/mol
78g............3*36.5g
Al(OH)3 + 3HCl --> AlCl3 + 3H2O
7.8g.............x=3*36.5*7.8/78=10.95g HCl