Fe + CuSO4 → FeSO4 + Cu
Gọi x là số mol Fe phản ứng
\(\Rightarrow m_{Fe}=56x\left(g\right)\)
Theo pt: \(n_{Cu}tt=n_{Fe}pư=x\left(mol\right)\)
\(\Rightarrow m_{Cu}tt=64x\left(g\right)\)
Ta có: \(m_{Cu}tt-m_{Fe}pư=m_{kl}tăng\)
\(\Leftrightarrow64x-56x=0,2\)
\(\Leftrightarrow8x=0,2\)
\(\Leftrightarrow x=0,025\)
Vậy \(n_{Fe}pư=0,025\left(mol\right)\Rightarrow m_{Fe}pư=0,025\times56=1,4\left(g\right)\)
\(m_{Cu}tt=0,025\times64=1,6\left(g\right)\)
Fe + CuSO4 → FeSO4 + Cu↓
Gọi số mol Fe phản ứng là \(x\)
\(\Rightarrow m_{Fe}=56x\left(g\right)\)
Theo pt: \(n_{Cu}tt=n_{Fe}pư=x\left(mol\right)\)
\(\Rightarrow m_{Cu}tt=64x\left(g\right)\)
Ta có: \(m_{Cu}tt-m_{Fe}pư=m_{kl}tăng\)
\(\Leftrightarrow64x-56x=0,2\)
\(\Leftrightarrow8x=0,2\)
\(\Leftrightarrow x=0,025\)
Vậy \(n_{Fe}pư=0,025\left(mol\right)\)
\(\Rightarrow m_{Fe}pư=0,025\times56=1,4\left(g\right)\)
\(m_{Cu}tt=0,025\times64=1,6\left(g\right)\)