Question

Cat  hidrogen se obtine prin reactia dintre 1080 g aluminiu si acid  sulfuric?

Answer 1

2 Al + 3 H2SO4 ---> Al2(SO4)3 + 3 H2
la 2 * 27 g Al.........3 * 2 g H2
la 1080 g Al..........x g H2         x=120 g H2