дано
m(Al) = 10.8 g
+HCL
V(H2) - ?
2Al+6HCL-->2AlCL3+3H2
M(Al) = 27 g/mol
n(Al) = m(Al) / M(Al) = 10.8 / 27 = 0.4 mol
2n(Al) = 3n(H2)
n(H2) = 3*0.4 / 2 = 0,6 mol
V(H2) = n(H2) * Vm = 0.6 * 22.4 = 13.44 L
ответ 13.44 л
Объяснение:
дано
m(Al) = 10.8 g
+HCL
V(H2) - ?
2Al+6HCL-->2AlCL3+3H2
M(Al) = 27 g/mol
n(Al) = m(Al) / M(Al) = 10.8 / 27 = 0.4 mol
2n(Al) = 3n(H2)
n(H2) = 3*0.4 / 2 = 0,6 mol
V(H2) = n(H2) * Vm = 0.6 * 22.4 = 13.44 L
ответ 13.44 л
Объяснение: