\(n_{H2SO4}=0,25\left(mol\right)\)
\(PTHH:BaCl2+H2SO4\rightarrow BaSO4+2HCL\)
\(\Rightarrow\frac{V}{22,4}.1=0,25\Rightarrow V=5,6l\)
\(\Rightarrow n_{BaSO4}=0,25mol\Rightarrow m_{BaSO4}=58,25\)
\(\Rightarrow V_{BaSO4}=0,25.22,4=5,6l\)
\(\Rightarrow C_M=0,04M\)
a) BaCl2 + H2SO4--->BaSO4 +2HCl
Ta có
n\(_{H2SO4}=0,5.\)0,5=0,25(mol)
Theo pthh
nn\(_{BaCl2}=n_{H2SO4}=0,25\left(mol\right)\)
V=\(\frac{0,25}{1}=0,25\left(l\right)\)
b) Theo pthh
n\(_{BaSO4}=n_{H2SO4}=0,25\left(mol\right)\)
m\(_{BaSO4}=0,25.233=58,25\left(g\right)\)
Theo pthh
n\(_{HCl}=2n_{H2SO4}=0,5\left(mol\right)\)
C\(_{M\left(HCl\right)}=\frac{0,5}{0,5+0,25}=0,67\left(M\right)\)
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