a) \(M_X=3,86M_{N_2}=3,86\cdot28\approx108\left(\text{g/mol}\right)\)
b) CTHH: B2O5
\(\Rightarrow M_X=2M_B+5M_O=2M_B+5\cdot16=108\Rightarrow M_B=14\left(\text{g/mol}\right)\)
B là nitơ ⇒ N2O5
a) MX=3,86MN2=3,86⋅28≈108(g/mol)MX=3,86MN2=3,86⋅28≈108(g/mol)
b) CTHH: B2O5
⇒MX=2MB+5MO=2MB+5⋅16=108⇒MB=14(g/mol)⇒MX=2MB+5MO=2MB+5⋅16=108⇒MB=14(g/mol)
B là nitơ ⇒ N2O5