The mass percentage of O in a potassium salt, K2S2Ox, is 36.0%. What is the formula of the polyatomic ion? | Stoichiometry

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Question

The mass percentage of O in a potassium salt, K₂S₂Ox, is 36.0%. What is the formula of the polyatomic ion?

S₂O₃ 2–

S₂O₅ 2–

✓ Correct

S₂O₇ 2–

S₂O₈ 2–

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