The oxyacids containing oxygen (OO) and phosphorous (PP) are named differently than the oxyanions on which they are based. You have just learned that in general -ite endings are changed to -ous while -ate endings are changed to -ic when naming the acid. However, for the acids of oxyanions based on phosphorus, the root also changes. The roots for the oxyanions and oxyacids of phosphorus are shown below.
The oxyacids containing oxygen (OO) and phosphorous (PP) are named differently than the oxyanions on which they are based. You have just learned that in general -ite endings are changed to -ous while -ate endings are changed to -ic when naming the acid. However, for the acids of oxyanions based on phosphorus, the root also changes. The roots for the oxyanions and oxyacids of phosphorus are shown below.
- oxyanion root: phosph
- oxyacid root: phosphor
Although the exception exists for the root, the prefixes and suffixes of these oxyacids still follow the conventions for naming oxyacids. Using the table of oxyanions given in the transition before Part B and the roots shown above, give the name of the oxyacid H3PO3H3PO3 below.
As already mentioned in the question, the roots for the oxyanions and oxyacids of phosphorus are
- oxyanion root: phosph
- oxyacid root: phosphor
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