a, \(n_{Mg}=\dfrac{4,8}{24}=0,2mol\)
\(PTHH:Mg+2HCl\rightarrow MgCl_2+H_2\)
b, \(V_{H_2}=0,2.22,4=4,48l\)
\(n_{HCl}=0,2.2=0,4mol\)
\(m_{HCl}=0,4.36,5=14,6g\)
\(m_{MgCl_2}=0,2.95=19g\)
a: \(Mg+2HCl\rightarrow MgCl_2+H_2\)
\(n_{Mg}=\dfrac{4.8}{24}=0.2\left(mol\right)\)
b: \(n_{H_2}=n_{Mg}=0.2\left(mol\right)\)
\(\Leftrightarrow V_{H_2}=0.2\cdot22.4=4.48\left(lít\right)\)
\(n_{HCl}=2\cdot0.2=0.4\left(mol\right)\)
\(m_{HCl}=0.4\cdot36.5=14.6\left(g\right)\)
\(m_{MgCl_2}=0.2\cdot95=19\left(g\right)\)