\(n_{MnO_2}=0,8\left(mol\right)\)
\(PTHH:MnO_2+4HCl_{\left(\text{đ}\right)}\underrightarrow{t^o}MnCl_2+Cl_2+2H_2O\)
(mol)_____0,8_______________________0,8__________
\(n_{NaOH}=2\left(mol\right)\)
\(PTHH:2NaOH+Cl_2\rightarrow NaCl+NaClO+H_2O\)
(mol)____1,6_______0,8______0,8____0,8___________
Tỉ lệ: \(\frac{2}{2}>\frac{0,8}{1}\rightarrow\) NaOH dư 2 - 1,6 = 0,4 (mol)
\(C_{M_{NaOH}}=\frac{0,4}{0,5}=0,8\left(M\right)\)
\(C_{M_{NaCl}}=C_{M_{NaClO}}=\frac{0,8}{0,5}=1,6\left(M\right)\)
\(\sum C_M=0,8+1,6=2,4\left(M\right)\)