Ta có: \(m_{FeS_2}=60\%.8=4,8\left(tấn\right)\)
\(FeS_2\rightarrow2S\)
120(g)->64(g)
4,8(tấn)->2,56(tấn)
\(S\rightarrow H_2SO_4\)
32(g)->98(g)
2,56(tấn)->7,84(tấn)
`=>` \(m_{ddH_2SO_4\left(60\%.TT\right)}=\dfrac{7,84.75\%}{60\%}=9,8\left(tấn\right)\)
Ta có: mFeS2 = 8.60% = 4,8 (tấn) = 4800 (kg)
\(\Rightarrow n_{FeS_2}=\dfrac{4800}{120}=40\left(kmol\right)\)
BTNT S, có: \(n_{H_2SO_4\left(LT\right)}=2n_{FeS_2}=80\left(kmol\right)\)
Mà: H% = 75% \(\Rightarrow n_{H_2SO_4\left(TT\right)}=80.75\%=60\left(kmol\right)\)
\(\Rightarrow m_{H_2SO_4\left(TT\right)}=60.98=5880\left(kg\right)\)
\(\Rightarrow m_{ddH_2SO_4\left(60\%\right)}=\dfrac{5880}{60\%}=9800\left(kg\right)\)