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What is the oxidation number of SO42?

Updated: 8/11/2023
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14y ago

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As SO42- has an overall -2 charge, The Oxygen has a -2 oxidation state, so to balance and give an overall -2 charge, the Sulfur has to have a +6 oxidation state.

(-2 x 4) + (s) = -2

s = +6

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14y ago
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8y ago

This is sulfate ion. Sulfur shows +6 oxidation number.

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Q: What is the oxidation number of SO42?
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