PTHH : \(2M+O_2\rightarrow2MO\)
\(n_M=\frac{m_M}{M_M}=\frac{13}{M_M}\left(mol\right)\)
\(n_{MO}=\frac{m_{MO}}{M_{MO}}=\frac{16,2}{M_M+16}\left(mol\right)\)
- Theo PTHH : \(n_M=n_{MO}\left(mol\right)\)
=> \(\frac{13}{M_M}=\frac{16,2}{M_M+16}\)
=> \(16,2M_M=13M_M+208\)
=> \(3,2M_M=208\)
=> \(M_M=65\) ( đvc )
Vậy M là kim loại kẽm ( Zn ) .
PT : 2M+O2→2MO
nM=13\MM(mol)
nMO=16,2\MM+16(mol)
- Theo PT : nM=nMO(mol)
=> 13\MM=16,2\MM+16
= 16,2MM=13MM+208
= 3,2MM=208
=MM=65
Vậy M là kim loại Zn ( kẽm ) .