a) nX= 2,24/22,4= 0,1(mol)
=> M(X)= mX/ nX= 2,8/0,1= 28(g/mol)
b) M(B)= mB/nB= 3,6/ 0,15= 24(g/mol)
c) nkhí = 4,48/22,4= 0,2(mol)
=> M(khí)= m(khí)/ n(khí) = 8,8 / 0,2= 44(g/mol)
a) \(n_X=\dfrac{2,24}{22,4}=0,1\left(mol\right)\)
\(\Rightarrow M_X=\dfrac{2,8}{0,1}=28\left(g\right)\)
b) \(M_B=\dfrac{3,6}{0,15}=24\left(g\right)\)
c) \(n_{Khí}=\dfrac{4,48}{22,4}=0,1\left(mol\right)\)
\(\Rightarrow M_{Khí}=\dfrac{8,8}{0,2}=44\left(g\right)\)