nAl= \(\dfrac{4,5}{27}\simeq0,17\left(mol\right)\)
a) 2Al + 6HCl -> 2AlCl3 + 3H2
0,17 --------------> 0,17 ----> 0,255
b) VH2 = 0,255 . 22,4 = 5,712 (l)
c) mAlCl3 = 0,17 . 133,5 =22,695(g)
a, 2Al + 6HCl -> \(2AlCl_3\) + \(3H_2\)\(\uparrow\)
b, \(n_{Al}\) = \(\dfrac{4,5}{27}\) \(\approx\) 0,16 (mol)
=> \(n_{H_2}\) = \(\dfrac{3}{2}\) \(n_{Al}\) = \(\dfrac{3}{2}\). 0, 16 = 0,24 (mol)
=> \(V_{H_2}\)dktc = 0,24 . 22,4 = 5,376 (l)
c, \(n_{AlCl_3}\) = \(n_{Al}\)= 0,16 mol
=> \(m_{AlCl_3}\) = 0,16 . ( 27 + 35,5 . 3) = 21,36 (g)
nAl=4,5/27~0,167(mol)
2Al+6HCl--->2AlCl3+3H2
0,167________0,167___0,2505
VH2=0,2505.22,4=5,6112(l)
mAlCl3=0,167.133,5=22,2945(g)