\(n_{HCl}=200.3,65\%=7,3g\)
\(m_{HCl}=\dfrac{7,3}{36,5}=0,2mol\)
\(Mg+2HCl\rightarrow MgCl_2+H_2\)
0,1 0,2 0,1 ( mol )
\(m_{Mg}=0,1.24=2,4g\)
\(V_{H_2}=0,1.22,4=2,24l\)
\(m_{HCl}=200.3,65\%=7,3\left(g\right)\\
n_{HCl}=\dfrac{7,3}{36,5}=0,2\left(mol\right)\\ pthh:Mg+2HCl\rightarrow MgCl_2+H_2\)
0,1 0,2 0,1
\(\Rightarrow V_{H_2}=0,1.22,4=2,24\left(l\right)\\
m_{Mg}=0,1.24=2,4\left(g\right)\)
Mg + 2HCl -- > MgCl2 + H2
mHCl = (200.3,65) / 100 = 7,3(g)
=> nHCl = 7,3 : 36,5 = 0,2 (mol)
=> nH2 = 0,1 (mol)
=> VH2 = 0,1 .22,4 = 2,24(l)
nMg = nHCl = 0,2(mol)
mMg = 0,1 . 24 = 2,4(g)