дано
m(Al) = 54 g
V(H2)-?
2Al+3H2SO4=Al2(SO4)3+3H2
M(Al) = 27 g/mol
n(Al) = m/M = 54 /27 = 2 mol
n(H2) = 2*3 / 2 = 3 mol
V(H2) = n*Vm = 3* 22.4 = 67.2 L
ответ 67.2 л
Объяснение:
дано
m(Al) = 54 g
V(H2)-?
2Al+3H2SO4=Al2(SO4)3+3H2
M(Al) = 27 g/mol
n(Al) = m/M = 54 /27 = 2 mol
n(H2) = 2*3 / 2 = 3 mol
V(H2) = n*Vm = 3* 22.4 = 67.2 L
ответ 67.2 л
Объяснение: