pthh 2Al + 6HCl -> 2AlCl3 + 3H2
LTL :
\(\dfrac{0,3}{2}>\dfrac{0,2}{6}\)
=> Al dư
theo pthh : nAlCl3 =\(\dfrac{2}{6}\)nHCl = \(\dfrac{1}{15}\) (mol)
=> mAlCl3 = \(\dfrac{1}{15}.133,5=8,9\left(g\right)\)
PTHH : 2Al + 6HCl -> 2AlCl3 + 3H2
0,2 \(\dfrac{1}{15}\)
Ta thấy \(\dfrac{0.3}{2}>\dfrac{0.2}{6}\) => Al dư , HCl đủ
\(m_{AlCl_3}=\dfrac{1}{15}.133,5=8,9\left(g\right)\)