ta có :
dA/H2 = 22 => MA = MH2 . dA/H2 = 2 . 22 = 44
VA = 8,96 lít => nA = 8,96 : 22,4 = 0,4 mol
=> mA = nA . MA = 0,4 . 44 = 17,6 (g)
\(\text{Ta có : }d_{A/H_2}=\dfrac{M_A}{M_{H_2}}=\dfrac{M_A}{2}=22\)
\(\Rightarrow M_A=22.2=44\left(g/mol\right)\)
\(n_A=\dfrac{V}{22,4}=\dfrac{8,96}{22,4}=0,4\left(mol\right)\)
\(m_A=n.M=0,4.44=17,6\left(g\right)\)
\(dA/H_2=\dfrac{M_A}{M_{H_2}}=22\Rightarrow M_A=22.2=44\left(g/mol\right)\)
\(n_A=\dfrac{8,96}{22,4}=0,4\left(mol\right)\)
\(\Rightarrow m_A=M_A.n_A=44.0,4=17,6\left(g\right)\)
Ta có: \(d_{A/H_2}=\dfrac{M_A}{M_{H_2}}\Rightarrow M_A=d_{A/H_2}.M_{H_2}=2.22=44\left(g/mol\right)\)
\(n_A=\dfrac{V_A}{22,4}=\dfrac{8,96}{22,4}=0,4\left(mol\right)\)
\(\Rightarrow m_A=n_A.M_A=0,4.44=17,6\left(g\right)\)