\(CTHH:Al_xN_yO_z\)
\(\%O=100-12,676-19,72=67,604\%\)
Ta có : \(x:y:z=\dfrac{\%m_{Al}}{27}:\dfrac{\%m_N}{14}:\dfrac{\%m_O}{16}=\dfrac{12,676}{27}:\dfrac{19,72}{14}:\dfrac{67,604}{16}=1:3:9\)
=> CTHH: \(AlN_3O_9hayAl\left(NO_3\right)_3\)
\(CTHH:Al_xN_yO_z\)
Ta có : \(x:y:z=\dfrac{27,676}{27}:\dfrac{19,72}{14}:\dfrac{52,604}{16}=1:1,4:3,2\)