S in H₂S₂O₈
S is +6 in peroxodisulphuric acid.
Oxidation number
Type a formula or an ion: K2Cr2O7, Cr2O7 2-, MnO4-, NH4+ or K4[Fe(CN)6]. Put a known ion in brackets when two elements are unknown. Pick an element to solve for it.
S+6
H₂S₂O₈ (peroxodisulphuric acid) has one peroxide link: two O atoms are −1 and six are −2. So each S is +6, not +7.
- H₂S₂O₈ (peroxodisulphuric acid) has one peroxide link: two O atoms are −1 and six are −2. So each S is +6, not +7.
- So S in H₂S₂O₈ is +6.
How to find it
- H₂S₂O₈ (peroxodisulphuric acid) has one peroxide link: two O atoms are −1 and six are −2. So each S is +6, not +7.
- So S in H₂S₂O₈ is +6.
H₂S₂O₈ (peroxodisulphuric acid) has one peroxide link: two O atoms are −1 and six are −2. So each S is +6, not +7.
All the oxidation numbers in H₂S₂O₈
- H +12 atoms, structure
- S +62 atoms, structure
- O −7/48 atoms, structure
S in H₂S₂O₈: quick answers
What is the oxidation number of S in H₂S₂O₈?
S in H₂S₂O₈ (peroxodisulphuric acid) is +6. H₂S₂O₈ (peroxodisulphuric acid) has one peroxide link: two O atoms are −1 and six are −2. So each S is +6, not +7.
How do you find the oxidation number of S in H₂S₂O₈?
H₂S₂O₈ (peroxodisulphuric acid) has one peroxide link: two O atoms are −1 and six are −2. So each S is +6, not +7. So S in H₂S₂O₈ is +6.
What are the oxidation numbers of the other atoms in H₂S₂O₈?
H +1, O −7/4. Together with S at +6 they add up to the charge of the compound, 0.