Kim loại

T

tyn_nguyket

hóa

$5Mg + 12H^+ + 2NO_3^- ---> 5Mg^{2+} + N_2 + 6H_2O$
0,05 __ 0,12 ___ 0,02 ______________0,01
\Rightarrow n$H^+ dư$ = n$NO_3^- dư =0,03$
$12H^+ + 2NO_3^- ---> N_2 + 6H_2O$
0,03 ________________ 0,0025
\Rightarrow n$N_2 = 0,0125$
\Rightarrow V = 0,28 (lít)
 
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