The oxidation number of chromium varies from +2 to +6.
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The oxidation number of phosphorus in chromium(III) phosphate is +5. In chromium(III) phosphate, each chromium ion has a +3 oxidation state, and the overall compound is electrically neutral, so the oxidation number of phosphorus must be +5 to balance the charges.
No, phosphate and phosphide do not have the same oxidation number. In phosphate, the oxidation number of phosphorus is usually +5, while in phosphide, the oxidation number of phosphorus is -3.
The oxidation number of phosphorus in phosphate (PO4^3-) is +5. This is because oxygen typically has an oxidation number of -2, and there are four oxygen atoms in the phosphate ion, resulting in a total charge of -8. To balance the charge, the phosphorus atom must have an oxidation number of +5.
The oxidation number of phosphorus in a hydrogen phosphate ion (HPO4^2-) is +5. This is because oxygen typically has an oxidation number of -2, and there are four oxygen atoms surrounding the phosphorus atom, giving it an oxidation number of +5 to balance the negative charge of the oxygens.
To find the oxidation number of phosphorus in phosphate (PO4), consider that oxygen typically has an oxidation number of -2. Since there are four oxygen atoms in phosphate, their total charge is -8. The overall charge of the phosphate ion is -3, so the oxidation number of phosphorus can be calculated as +5 to balance the charges.
The oxidation number for the dihydrogen phosphate ion (H2PO4-) is +1 for each hydrogen atom, -2 for the oxygen atom, and +5 for the phosphorus atom.