\(n_{Cl_2}=\dfrac{V}{22,4}=\dfrac{4,48}{22,4}=0,2\left(mol\right)\)
a) PTHH :
M + Cl2 ----> MCl2
0,2...0,2..........0,2..(mol)
=>\(M_M=\dfrac{4,8}{0,2}=24\left(Mg\right)\)
vậy kim loại M là Magie
b)
\(m_{MgCl_2}=m=0,2\cdot95=19\left(g\right)\)
\(n_{Cl_2}=\dfrac{4,48}{22,4}=0,2\left(mol\right)\)
a. PTHH: \(M+Cl_2\rightarrow MCl_2\)
Theo PT ta có: \(n_M=n_{Cl_2}=0,2\left(mol\right)\)
\(\Rightarrow M_M=\dfrac{m}{n}=\dfrac{4,8}{0,2}=24\)
\(\Rightarrow M\) là kim loại Magie (Mg)
b. \(m_{MgCl_2}=0,2.95=19\left(g\right)\)