Ответ:
дано
W(прим) = 20%
V пр.(CH4) = 8.4 L
η(CH4) = 50%
--------------------
m техн (Al4C3)-?
Al4C3+12H2O-->3CH4+4Al(OH)3
V теор (CH4) = V(CH4) * 100% / η(CH4) = 8.4 * 100% / 50% = 16.8 L
n(CH4) = V(CH4) / Vm = 16.8 / 22.4 = 0.75 mol
n(Al4C3) = 3n(CH4)
n(Al4C3) = 0.75 / 3 = 0.25 mol
M(Al4C3) = 144 g/mol
m чист. (Al4C3) = n*M = 0.25 * 144 = 36 g
m техн (Al4C3) = 36 + (36*20% / 100%) = 43.2 g
ответ- 43.2 г
Ответ:
дано
W(прим) = 20%
V пр.(CH4) = 8.4 L
η(CH4) = 50%
--------------------
m техн (Al4C3)-?
Al4C3+12H2O-->3CH4+4Al(OH)3
V теор (CH4) = V(CH4) * 100% / η(CH4) = 8.4 * 100% / 50% = 16.8 L
n(CH4) = V(CH4) / Vm = 16.8 / 22.4 = 0.75 mol
n(Al4C3) = 3n(CH4)
n(Al4C3) = 0.75 / 3 = 0.25 mol
M(Al4C3) = 144 g/mol
m чист. (Al4C3) = n*M = 0.25 * 144 = 36 g
m техн (Al4C3) = 36 + (36*20% / 100%) = 43.2 g
ответ- 43.2 г