toan halogen kho

H

hocmai.hoahoc

Gợi ý làm bài:

4 HSO4- + 2 Cl- + MnO2→ 3 SO4^2- + MnSO4 + 2 H2O+Cl2.
0,4 mol <--------------------------------------------------------- 0,1 mol.
mKHSO4= 54,4 gam.
 
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