Ta có: \(n_{H_2SO_4}=0,8.4=3,2\left(mol\right)\)
\(n_{SO_2}=\dfrac{13,44}{22,4}=0,6\left(mol\right)\)
\(2H_2SO_4+2e\rightarrow SO_4^{2-}+SO_2+2H_2O\)
____1,2__________0,6_____0,6 (mol)
\(4H_2SO_4+6e\rightarrow3SO_4^{2-}+S+4H_2O\)
___2______________1,5___0,5 (mol)
a, mS = 0,5.32 = 16 (g) = a
b, m muối = mX + mSO42- = 60 + (0,6 + 1,5).96 = 261,6 (g)
Đúng 3
Bình luận (0)