N 0, 04 MOL 3ALN 0, 03 MOL B OM TA CĨ
Câu 28:
n 0, 04 mol
3
Al
n 0, 03 mol B
O
M
Ta cĩ :
ax
aS
4
n 0, 03 mol m
2
Ba
Al(OH)
n 0, 06 mol
SO
BT.Nh m.OH
ĩ
nKOH
0, 04.3 0, 06 0, 03 0, 03mol m 1,17g