Fe+H2SO4 ---->FeSO4 +H2
a) Ta có
n\(_{H2}=\frac{6,72}{22,4}=0,3\left(mol\right)\)
Theo pthh
n\(_{Fe}=n_{H2}=0,3mol\)
m\(_{Fe}=0,3.56=16,8\left(g\right)\)
b)Theo pthh
n\(_{H2SO4}=n_{H2}=0,3\left(mol\right)\)
C\(_M\left(H2SO4\right)=\frac{0,3}{0,6}=0,5\left(M\right)\)
c) Theo pthh
n\(_{FeSO4}=n_{H2}=0,3\left(mol\right)\)
m\(_{FeSO4}=0,3.152=45.6\left(g\right)\)
Chúc bạn học tốt
Nhớ tích cho mình nhé
\(PTHH:Fe+H_2SO_4\rightarrow FeSO_4+H_2\)
\(n_{H_2}=\frac{6,72}{22,4}=0,3\left(mol\right)\)
\(m_{Fe}=0,3.56=16,8\left(g\right)\\ C_{M_{Axit}}=\frac{0,6}{0,6}=1\left(M\right)\\ m_A=0,3.152=45,6\left(g\right)\)
PTHH:Fe+H2SO4->FeSO4+H2
nH2=\(\frac{6,72}{22,4}\)=0,3(mol)
a)m\(_{Fe}\)=0,3.56=16,8(g)
b)C\(_{M-đH2SO4}\)=0,3:0,6=0,5(M)
c)m\(_{FeSO4}\)=0,3.152=45,6(g)
PTHH : Fe + H2SO4 → FeSO4 + H2
Số mol H2(đktc):
nH2 = \(\frac{6,72}{22,4}\)= 0, 3 (mol)
PTHH : Fe + H2SO4 → FeSO4 + H2
............0,3.....................................0,3(mol)
K/l Fe:
mFe = 0, 3.56 = 16, 8 (g)
\(C_{M\left(H_2SO_4\right)}=\frac{0,3}{0,6}=0,5\left(M\right)\)
mA = 0, 3.152 = 45, 6 (g)
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