\(n_{Zn}=\frac{6,5}{65}=0,1\left(mol\right)\)
\(Zn+2HCl->ZnCl_2+H_2\left(1\right)\)
a , theo (1) \(n_{H_2}=n_{Zn}=0,1\left(mol\right)\)
=> \(V_{H_2}=0,1.22,4=2,24\left(l\right)\)
b, theo (1) \(n_{HCl}=2n_{Zn}=0,2\left(mol\right)\)
=> \(m_{HCl}=0,2.36.5=7,3\left(g\right)\)
nZn = 6,5 / 65 = 0,1 (mol)
a. Zn + 2HCl -> ZnCl2 + H2
nH2 = nZn = 0,1 (mol)
VH2 = 0,1 . 22,4 = 2,24 (l)
b. nHCl = 2.nZn = 2.0,1 = 0,2 (mol)
mHCl = 0,2 . 36,5 = 7,3 (g)