Procentuální obsah železa v rudě FeCO3
Kolik procent železa obsahuje ruda:
ocelek \( \mathrm{FeCO}_{3} \)
\( \mathrm{f}\left(\mathrm{FeCO}_{3}\right)=\frac{M_{r}(\mathrm{Fe})}{M_{r}\left(F e C O_{3}\right)}=\frac{55,85}{115,86}=0,4820 \Rightarrow \mathbf{4 8 , 5 0} \% \mathbf{F e} \)
\( \mathrm{f}\left(\mathrm{FeCO}_{3}\right)=\frac{M_{r}(\mathrm{Fe})}{M_{r}\left(F e C O_{3}\right)}=\frac{55,85}{115,86}=0,4820 \Rightarrow \mathbf{4 8 , 2 0} \% \mathbf{F e} \)
\( \mathrm{f}\left(\mathrm{FeCO}_{3}\right)=\frac{M_{r}(\mathrm{Fe})}{M_{r}\left(F e C O_{3}\right)}=\frac{55,85}{115,86}=0,4820 \Rightarrow \mathbf{4 7 , 2 0} \% \mathbf{F e} \)
\( \mathrm{f}\left(\mathrm{FeCO}_{3}\right)=\frac{M_{r}(\mathrm{Fe})}{M_{r}\left(F e C O_{3}\right)}=\frac{55,85}{115,86}=0,4820 \Rightarrow \mathbf{4 5 , 2 0} \% \mathbf{F e} \)