\(n_{MnO2}=\frac{26,1}{87}=0,3\left(mol\right)\)
\(PTHH:MnO_2+4HCl\rightarrow MnCl_2+Cl_2+H_2O\)
a,
\(n_{Cl2}=n_{MnO2}=0,3\left(mol\right)\)
\(\Rightarrow V_{Cl2}=0,3.22,4=6,72\left(l\right)\)
b,\(n_{HCl}=4n_{MnO2}=4.0,3=1,2\left(mol\right)\)
\(\Rightarrow CM_{dd\left(HCl\right)}=\frac{1,2}{0,4}=3M\)
a)\(16HCl+2MnO2-->5Cl2+8H2O+2MnO2+2KCl\)
đề là 1g á hả
a)\(16HCl+2MnO2-->5Cl2+8H2O+2MnCl2+2KCl\)
\(n_{MnO2}=\frac{26,1}{87}=0,3\left(mol\right)\)
\(n_{Cl2}=\frac{5}{2}n_{MnO2}=0,75\left(mol\right)\)
\(V_{Cl2}=0,75.22,4=16,8\left(l\right)\)
b)\(n_{HCl}=8n_{MnO2}=2,4\left(mol\right)\)
\(C_{M\left(HCl\right)}=\frac{2,4}{0,4}=6\left(M\right)\)
\(MnO_2+4HCl\rightarrow MnCl_2+Cl_2+H_2O\)
a) \(n_{MnO_2}=\frac{26,1}{87}=0,3\left(mol\right)\)
Theo PT: \(n_{MnO_2}=n_{Cl_2}=0,3\left(mol\right)\)
\(\Rightarrow V_{Cl_2}=0,3.22,4=6,72\left(l\right)\)
b)Theo PT: \(n_{HCl}=2n_{MnO_2}=0,6\left(mol\right)\)
\(\Rightarrow C_{M_{HCl}}=\frac{0,6}{0,4}=1,5M\)
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