Practice question
Question
In 2H₂S + SO₂ → 3S + 2H₂O, what is the total number of electrons transferred per mole of SO₂?
Explanation
S (+4 in SO₂) to 0 in S: 1 S gains 4 electrons. 2 H₂S (S: -2 to 0): 2 S lose 4 electrons total. Per SO₂ = 4.
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